solution: Oxytocin chemical is the chemical which animates the arrival of milk from the mammary organ by causing encompassing cells to contract. At the point when the baby begins taking care of...
solution: Hypothyroidism is the point at which the thyroid chemical secretes less sum causes this illness. The side effects incorporate weight acquire, loss of hunger, dry and coarse skin....
solution: Hypothyroidism during pregnancy causes inadequate turn of events and hindered development (cretinism). Mental impediment and low IQ.
solution: Thymosin is the significant chemical that assumes a significant part in the safe framework yet with age, thymus organ begins to decline and hence elderly individuals have a frail safe...
solution: Cortisol is a steroid chemical which is discharged by the adrenal cortex that produces mitigating reactions and stifles the insusceptible reaction.
solution: Melatonin is the chemical which is answerable for this organic framework inconvenience. Fly slack is a transitory rest problem.
a. Which likely infection are these individuals experiencing? b. How could it be caused? c. What impact does this condition have on pregnancy? solution: a. Goiter. This is because of the...
solution: Optional courier like (cAMP) go about as intracellular hormonal arbiter which convey the data inside the objective cell. Auxiliary courier is cAMP, cGMP, diacylglycerol, inositol...
solution: On account of Males, the LH animates Androgen emission and combination from testicles. The head of androgen is testosterone which animates the spermatogenesis and liable for the...
Section I a. Oxytocin b. Epinephrine c. Progesterone d. Development chemical Segment II I. Amino corrosive subsidiary ( ) ii. Steroid ( ) iii. Protein ( ) iv. Peptide ( ) solution: a-iv, b-I, c-ii,...
a. Insulin is a steroid chemical. b. TSH is emitted from the corpus luteum c. Tetraiodothyronine is a crisis chemical. d. The pineal organ is situated on the foremost piece of the kidney. solution:...
solution; Specialist plans to quantify vasopressin chemical since this chemical builds the reabsorption of water by the kidney and inadequacy of this chemical abatements reabsorption of water
a. The gastrointestinal lot, kidney and heart likewise produce chemicals. b. Standards distalis produces six trophic chemicals. c. B-lymphocytes give cell-interceded resistance. d. Insulin...
electrons.Electron potential is given as $\mathrm{V}=30 \mathrm{kV}=\mathbf{3} \times \mathbf{1 0}^{4} \mathrm{~V}$ Hence, electron energy will be $\mathbf{E}=\mathbf{3} \times \mathbf{1 0}^{4} \mathrm{eV}$...
solution: cAMP goes about as an intercellular chemical which is an auxiliary courier those convey the data as intracellular to the objective cells.
solution: Thymosin is the chemical that aides in cell-interceded resistance. It helps in development of T-cells and separation of T-cells.
solution: The thyroid organ is an endocrine organ which produces calcitonin chemical which is a peptide chemical. This chemical reductions the convergence of calcium particles in the plasma.
solution: Standards intermedia emit just a single chemical called melanocyte-animating chemical (MSH).
solution: Arrangement of RBCs is called Erythropoiesis. Erythropoietin chemical animates for erythropoiesis.
solution: Zonaglomerulosa is the peripheral layer which encompasses different layers. The center layer is Zona fasciculate and deepest layer is Zonareticularis.
solution: Ovaries are missing in male and testicles are missing in female both emit sex chemicals.
a. Cretinism b. Goiter c. Myxedema d. Exophthalmia solution: Alternative (d) is the appropriate response.
(i) 3-Methylbutanal (ii) p-Nitropropiophenone (iii) p-Methylbenzaldehyde (iv)4-Methylpent-3-en-2-one (v) 4-Chloropentan-2-one (vi) 3-Bromo-4-phenylpentanoic acid (vii)...
a. Ovary b. Adrenal c. Liver d. Kidney solution: Alternative (c) is the appropriate response.
a. Nutrient D b. Parathyroid chemical c. Thyrocalcitonin d. Thymosin solution: Choice (d) is the appropriate response.
Section I A. Epinephrine B. Testosterone C. Glucagon D. Atrial natriuretic factor Segment II I. Animates muscle development ii. A diminishing in pulse iii. Breakdown of liver glycogen Content iv....
a. Extracellular grid b. Blood c. Plasma layer d. Core solution: Alternative (c) is the appropriate response.
a. Epinephrine b. Gastrin c. Melatonin d. Insulin solution: Choice (c) is the appropriate response.
and the metre shows full-scale deflection for a current of 4 mA. How will you convert the metre into an ammeter of range 0 to 6 A?Resistance of the galvanometer is given as $\mathrm{G}=15 \Omega$ Current flowing through the galvanometer is given as $\mathrm{lg}=4 \mathrm{~mA}=4 \times 10^{-3} \mathrm{~A}$ Ammeter range is $0$...
a. Pancrease b. Thyroid c. Adrenal d. Thymus solution: Choice (c) is the appropriate response.
and the metre shows full scale deflection for a current of 3 mA. How will you convert the metre into a voltmeter of range 0 to 18 V?Resistance of the galvanometer coil is given as $G=12 \Omega$ Current for which there is full scale deflection is given as I $=3 \mathrm{~mA}$ To convert a galvanometer to voltmeter,a resistor with...
a. Prolactin b. Progesterone c. Aldosterone d. Testosterone solution: Choice (b) is the appropriate response.
a. Androgens b. Estrogens c. Aldosterone d. Gonadotropins solution: Choice (a) is the appropriate response.
long and of radius, 
has 3 layers of windings of 300 turns each. A 
long wire of mass 
lies inside the solenoid (near its centre) normal to its axis; both the wire and the axis of the solenoid are in the horizontal plane. The wire is connected through two leads parallel to the axis of the solenoid to an external battery which supplies a current of 
in the wire. What value of current (with an appropriate sense of circulation) in the windings of the solenoid can support the weight of the wire? 
.Length of the solenoid is given as I $=60 \mathrm{~cm}$ Layers of windings is $3$ Each layer has 300 turns Number of turns per unit length, $n=(3 \times 300) / 0.6=1500 \mathrm{~m}^{-1}$ Inside the...
is placed in a uniform magnetic field of 
normal to the plane of the coil. If the current in the coil is 
, what is the average force on each electron in the coil due to the magnetic field? (The coil is made of copper wire of cross-sectional area 
, and the free electron density in copper is given to be about 
Number of turns is given as $\mathrm{n}=20$ turns Radius of the coil is given as $r=10 \mathrm{~cm}=0.1 \mathrm{~m}$ Current in the coil is given as $I=5 \mathrm{~A}$ Magnetic field strength is...
is placed in a uniform magnetic field of normal to the plane of the coil. If the current in the coil is , what is the (a) total torque on the coil, (b) the total force on the coil,Number of turns is given as n = 20 Radius of the coil is given as r = 0.1m Current in the coil is given as $I$ = 5A Magnetic field strength is given as $B$ =0.10 T Cross-sectional area of the wire...
is established along the positive z-direction. A rectangular loop of sides and 
carries a current of 
What is the torque on the loop in the different cases shown in the figure? What is the force on each case? Which case corresponds to stable equilibrium?(a) We can see from the diagram that A is normal to the x-y plane in the positive z-direction and B is parallel to the z-axis. $\vec{A}=50 \times 10^{-4} \hat{k}$ $\vec{B}=0.3 \hat{k}$ Accordingly,...
is established along the positive z-direction. A rectangular loop of sides and carries a current of What is the torque on the loop in the different cases shown in the figure? What is the force on each case? Which case corresponds to stable equilibrium?(a) $B$ is along the z-axis and $A$ is normal to the $x-z$ plane. $\vec{A}=-50 \times 10^{-4} \hat{j}$ $\vec{B}=0.3 \hat{k}$ $\vec{\tau}=12 \times\left(-50 \times 10^{-4}\right) \hat{j} \times 0.3...
a. Cyclic AMP b. Insulin c. T3 d. Gastrin solution: Choice (a) is the appropriate response.
a. Raising the glucose level b. Raising the blood calcium level c. Separation of T lymphocytes d. The reduction in blood RBC solution: Choice (c) is the appropriate response.
a. Insulin b. Melatonin c. Testosterone d. Aldosterone solution: Choice (d) is the appropriate response.
a. Estrogen and progesterone b. Oxytocin and vasopressin c. Adrenaline and noradrenaline d. Insulin and glucagon solution: Choice (c) is the appropriate response.
is established along the positive z-direction. A rectangular loop of sides and carries a current of What is the torque on the loop in the different cases shown in the figure? What is the force on each case? Which case corresponds to stable equilibrium?Magnetic field strength is given as $B=3000 \mathrm{G}=0.3 \mathrm{~T}$Area of the loop will be, $A=10 \times 5=50 \mathrm{~cm}^{2}=50 \times 10^{-4} \mathrm{~m}^{2}$Current flowing in the loop is,...
a. Development chemical b. Follicle-animating chemical c. Oxytocin d. Adrenocorticotrophic chemical solution: Choice (c) is the appropriate response.
Answer: (d) Combustion of Liquefied Petroleum Gas (LPG) Explanation: Because a new compound is generated after burning, combustion is always accompanied by a chemical change, which is irreversible...
solution: C. Linnaeus grouped the living beings dependent on morphological characters like Plantae and Animalia. In any case, it was not adequate as there were sure living beings guaranteed by both...
solution: Peat is shaped from the wetland vegetation particularly from the Sphagnum (lowland greenery). Sphagnum likes to fill in acidic nature in the lowland, because of the acridity the total...
solution: Significance of green growth Green growth is utilized as food in numerous species like Porphyra, laminaria and so on Chlorella and spirulina are unicellular green growth wealthy in protein...
solution: Blue green growth phycocyanin and r-phycoerythrin shades are available adjacent to chlorophyll a Earthy colored green growth have chlorophyll a, c, carotenoids and xanthophylls. They are...
solution: Zoospores are meager walled spores that are motile and whipped. They are delivered under great conditions Aplanospores are meager walled non-motile spores and created under negative...
solution: Utilized in the bottling works and heating industry: Saccharomyces cerivesea is utilized. Under anaerobic conditions interaction of maturation happens which discharges ethanol and CO2. The...
solution: Trypanosoma is a unicellular eukaryotic life form. Motion is worked with by flagella. Strategy for generation is agamic. The save food material is available as granules.
solution: Apothecium: It's a saucer or cup-formed, open fruiting body. Perithecium: Flask formed fruiting body. With an initial top called the ostiole. Cleistothecium: It's a shut round structure....
solution: Cyanobacteria combination their food and they are autotrophic. Heterotrophic microbes rely upon different living beings for their food. Both Cyanobacteria and heterotrophic microscopic...
solution: Neurospora is utilized as a hereditary instrument on the grounds that Quickest developing in vitro can be filled in negligible media. • Due to its haploid nature it can communicate both...
solution: This normally happening ring or curve of mushrooms, happening as a typical turf sickness, is distinguished as enormous dead rings or curve of grass in yards throughout the spring or summer...
solution: Diatoms are significantly phytoplankton's which are the main makers of sea. Subsequently known as "pearls of seas"
solution: Eukaryotes are the organic entities whose core and cell is limited by a layer. Four realms have eukaryotic organic entities a) Protista b) Fungi c) Plantae d)Animalia.
solution: Infections have no total cell structure.Try not to show development, division, digestion and need breath.High explicit gravityTry not to follow Robert Koch's proposeCan't be become under...
solution: Pea is known by various names in various nations. So rather than calling an assortment of names, logical names are given which are same on the planet all through. It is overall...
solution: Chemosynthetic microbes are autotrophic. They acquire energy for the blend of food by oxidizing inorganic substances.
solution: Contaminated water bodies are wealthy in supplements particularly in nitrogen content which gives good condition to green growth like Nostoc and Oscillotoria to blossom in the water...
solution: Two realm orders didn't recognize the prokaryotes and eukaryotes They didn't recognize unicellular and multicellular life forms They additionally didn't recognize...
a. Unicellular b. Distinct core c. Biflagellate–one flagellum lying longitudinally and the other dynamically. What might you recognize it as? Would you be able to name the realm it has a place with?...
Nitrogen because of its small size has a capacity to form pπ−pπ multiple bonds with itself.Thus, nitrogen forms a very stable diatomic molecule, N2. On moving down a group, the tendency...
Nitrogen, N (unlike P) does not have the d-orbital. This restricts nitrogen to expand its coordination number beyond four. Hence, R3N=O does not exist and it cannot accommodate more electrons due...
The H-M-H bond angles for the hydrides of group-15 elements are as follows: NH3 = 107o PH3 = 92o AsH3 = 91o SbH3 = 90oThe above trend in the H−M−H bond angle can be explained on the basis of the...
The resonating structures of the given compounds are as follows: NO2 : N2O5 :
solution: Cyanobacteria are equipped for fixing nitrogen with the assistance of particular cells called the heterocyst. They enhance the dirt ripeness. Thus BGA's are utilized in rural fields. For...
I. Amphibian territories ii. On rotting wood iii. Wet and clammy spots iv. As commit parasites on plants Look over the accompanying alternatives a. Nothing unless there are other options b. I and iv...
a. Monera b. Protista c. Parasites d. None of the above solution: Choice (d) is the appropriate response.
a. Karyogamy, Plasmogamy and Meiosis b. Meiosis, Plasmogamy and Karyogamy c. Plasmogamy, Karyogamy and Meiosis d. Meiosis, Karyogamy and Plasmogamy solution: Choice (c) is the appropriate...
a. Nonattendance of protein coat in viroid however present in infection b. Presence of low sub-atomic weight RNA in the infection however missing in viroid c. Both an and b d. Nothing unless there...
a. Mycorrhiza b. Root c. Lichens d. BGA solution: Choice (c) is the appropriate response.
a. D.J. Ivanowsky b. M.W. Beijerinek c. Stanley d. Robert Hook solution: Choice (b) is the appropriate response.
a. Meiosis is captured b. The two haploid cells don't meld right away c. Cytoplasm doesn't meld d. Nothing unless there are other options solution: Choice (b) is the appropriate...
a. Lichen b. Greenery c. Mycorrhiza d. BGA solution: Choice (c) is the appropriate response.
a. Monera b. Protista c. Parasites d. Ooze molds solution: Choice (d) is the appropriate response.
exists in a cylindrical region of a radius of 
, its direction parallel to the axis along east to west. A wire carrying a current of 
A in the north to south direction passes through this region. What is the magnitude and direction of the force on the wire if, (a) the wire intersects the axis, (b) the wire is turned from N-S to the northeast-northwest direction(a) Magnetic field, $B=1.5 \mathrm{~T}$ Current in the wire, $I=7.0 \mathrm{~A}$ Radius, $r=10 \mathrm{~cm}=0.1 \mathrm{~m}$ Diameter, $\mid=2 \times r=0.2 \mathrm{~m}$ On the wire, a force $2.1...
a. Methanogens b. Halophiles c. Heliophytes d. Thermoacidophiles solution: Alternative (b) is the appropriate response.
a. R.H. Whittaker b. C.Linnaeus c. A. Roxberg d. Virchow solution: Alternative (a) is the appropriate response.
a. Monera b. Protista c. Organisms d. Microbes solution: Alternative b is the appropriate response.
(for a short time). What is the force per unit length between the wires if they are 
long and 
apart? Is the force attractive or repulsive?Current flowing in the wires, $\mid=300 \mathrm{~A}$ Wires are separated by distance, $d=1.5 \mathrm{~cm}=0.015 \mathrm{~m}$ Length of the wires, $\mid=70 \mathrm{~cm}=0.7 \mathrm{~m}$ Force between...
and mass 
is suspended by two vertical wires at its ends. A current of is set up in the rod through the wires. (a) What magnetic field should be set up normal to the conductor in order that the tension in the wires is zero?(b) What will be the total tension in the wires if the direction of current is reversed keeping the magnetic field the same as before? (Ignore the mass of the wires.) 
.Length of the rod, I $=0.45 \mathrm{~m}$ Mass suspended, $m=60 \mathrm{~g}=60 \times 10^{-3} \mathrm{Kg}$ Current, $\mid=5 \mathrm{~A}$ (a) Tension in the wire is zero if the magnetic field's force...
solution: Blood is a connective tissue that is comprised of RBCs, WBCs and Platelets. It capacities as a supplement carrier inside the body while the platelets wear not play this capacity. Bone is a...
) is uniform in a small region and has a magnitude of 
. In the same region, a uniform electrostatic field is maintained in a direction normal to the common axis of the coils. A narrow beam of (single species) charged particles all accelerated through 
enters this region in a direction perpendicular to both the axis of the coils and the electrostatic field. If the beam remains undeflected when the electrostatic field is 
, make a simple guess as to what the beam contains. Why is the answer not unique?Magnetic field, $B=0.75 \mathrm{~T}$ Accelerating voltage, $\mathrm{V}=15 \mathrm{kV}=15 \times 10^{3} \mathrm{~V}$ Electrostatic field, $E=9.0 \times 10^{-5} \mathrm{~V} \mathrm{~m}^{-1}$ Kinetic...
rrangement: Entire moong daal has a flawless incipient organism whose breath rate is delayed during the period of torpidity. When these are given development condition, such as furnishing it with...
solution: A state of extreme lethargy is characterized as a drawn out condition of obviousness. The individual who is enduring unconsciousness will be ignorant of the environmental factors. A...
solution: Digestion is characterized as the all out of all substance responses that happen inside the body. Digestion is absolutely normal for living creatures. No living organic entity can display...
, enters a region with a uniform magnetic field of 
. Determine the trajectory of the electron if the field (a) is transverse to its initial velocity, (b) makes an angle of 
with the initial velocity.Magnetic field, $B=0.15 \mathrm{~T}$ Potential difference, $\mathrm{V}=2.0 \mathrm{kV}$ An electron obtains kinetic energy as a result of $\mathrm{E}=(1 / 2) \mathrm{mv}^{2}$ $\mathrm{eV}=(1 / 2)...
solution: A key is utilized to distinguish plants and creatures dependent on their likenesses and dissimilarities. The keys made depend on the differentiating characters that are portrayed by the...
solution: The gathering of life forms at any level is known as Taxon. This can be positioned as Species-sort family-request class-phylum/division-realm As we go from species to realm there is a...
solution: Assortment of data, strategies, methodology which assists with distinguishing and group an individual is called ordered guides. Significance of herbarium a) Collection of dried, squeezed...
a. Give the normal name of the plant. b. What do the initial two pieces of the name signify? c. For what reason would they say they are written in italics? d. What is the significance of Linn...
solution: A new distinguish animal groups can be effectively characterized by ordered guides. The researcher needs to do similar investigations of the morphological and physical elements with the...
solution: The capacity of an item which can self-recreate and self manage is known as Living. The 4 characterizing attributes are- I) Growth ii) Reproduction iii) Metabolism iv) Consciousness...
solution: A few components are there which assumes a significant part in this. Season, elimination and human exercises. A considerable lot of the living life forms are available at a specific time...
(a) The force acting on a charged particle, moving in a magnetic field is given by F = q v B sinθ now, if no force acts on the charged particle, it will proceed along a straight path at a constant...
solution: This marvel of all living organic entity is because of hidden connections. The properties of cell organelles are absent in the atomic constituents.
solution: As far as multiplication, these two species changes. They share similar family however they stay various species.
R1=10Ω, N1=30, A1=3.6×10−3m2,B1=0.25T R2=14Ω,N2=42, A2=1.8×10−3m2,B2=0.5T (The spring constants are identical for the two meters). Determine the ratio of (a) current sensitivity and (b)...
solution: They have given a logical name for each plant and creatures. It turned into the normal name all through the world. Model: Mango is experimentally named as Mangifera indica. Mango is called...
solution: Greenery is a vegetation happens in a specific locale or time. Fauna is the complete number of creatures found in a specific locale or time Vegetation is a term utilized for plant...
and 
turns carrying current 
, the magnitude of the magnetic field at a point on its axis at a distance 
from its centre is given by, 
(a) Show that this reduces to the familiar result for field at the centre of the coil. (b) Consider two parallel co-axial circular coils of equal radius 
, and number of turns 
, carrying equal currents in the same direction, and separated by a distance 
Show that the field on the axis around the mid-point between the coils is uniform over a distance that is small as compared to , and is given by, 
, approximately.(a) Given is the expression of $B$ as $\frac{\mu_{0} I R^{2} N}{2\left(x^{2}+R^{2}\right)^{3 / 2}}$ $x$ will be zero at the centre of the coil, Therefore, the magnetic field at the centre is...
solution: For setting up a herbarium sheet, the paper is cut in the ideal length →say, 29 x 41 cm.) The dried example is taken and mounted on the sheers with the assistance of paste. You might...
solution: These variations are known as the 'ecotypes'. Plants show changes in morphological components because of the altitudinal angle.
solution: The chain of importance continued in plants: Species → Genus → Family → Order → Class →Division → Kingdom Postfixes utilized by botanists are as per the following: Taxon Suffix a) Division...
solution: Biodiversity is only the complete of creature present in a specific region while variety is named for a huge region which might be utilized for living or non-living things.
solution: The development in the event of ice ball is totally apathetic from development. This occurs because of the outward development by the testimony of a similar material.
solution: The ordered key gives a specific design based on which the client can figure out the ordered situation of the obscure species. Couplet implies a couple which is of differentiating...
Arrangement: ICZN represents International Code of Zoological Nomenclature. It directs a uniform arrangement of zoological terminology.
with the normal of the coil. To prevent the coil from turning, determine the magnitude of the counter-torque that must be applied. (b) Would your answer change, if the circular coil in (a) were replaced by a planar coil of some irregular shape that encloses the same area? (All other particulars are also unaltered.)(a) Number of turns on the circular coil (n) is given as 30 Radius of the coil (r) is given as 0.08 m Area of the coil: $\pi {r^2}$= $\pi {(0.08)^2}$= $0.0201{m^2}$ Current flowing in the coil (I) =...
Solution: George Bentham and Joseph Dalton Hooker are known botanists who gave the regular arrangement of order of blooming plants.
i) Presence of vocal sacs in male frogs- The male frogs have saggy-skinned vocal sacs inside the necks. ii) Presence of Copulation pad in male frogs -The male frogs have a copulatory pad (nuptial...
and outer radius 
, around which 3500 turns of a wire are wound. If the current in the wire is 
, what is the magnetic field?(a) outside the toroid, (b) inside the core of the toroidThe core's inner radius, $r_{1}=0.25 \mathrm{~m}$ The core's outer radius, $r_{2}=0.26 \mathrm{~m}$ The number of wire turns, $N=3500$ turns Current in the wire, $1=11 \mathrm{~A}$ (a) Outside of...
m2. The maximum current-carrying capacity of a given coil of wire is 15 A and the number of turns per unit length that can be wound around a core is at most 1000 turns 
. Suggest some appropriate design particulars of a solenoid for the required purpose. Assume the core is not ferromagnetic.Magnetic field strength, B is given as $100 \times {10^{-4}}T$ Number of turns per unit length, N is given as 1000 turns/m Current carrying capacity of the coil is given as 15 A Permeability of free...
Radius of the coil X, r1 is given as 0.16 m Number of turns in coil X, n1 is given as 20 Current in the coil X, I1 is given as 16 A Radius of the coil Y, r2 is given as 0.1 m...
I A. Family B. Kingdom C. Order D. Species E. Genus II i. tuberosum ii. Polymoniales iii. Solanum iv. Plantae v. Solanaceae Options are as follows: a. A-iv, B-iii, C-v, D-ii, E -i...
a. Growth b. Reproduction c. Response to external stimuli d. All the above Solution: Option (c) Response to external stimuli is the answer
a. They have the common genetic materials b. They all share a common genetic material but of varying degrees c. All have common cellular organization d. none of these Solution: Option (b) They all...
a monographsb florac both (a) and (b)d none of these Solution: alternative C since Flora is book containing data concerning the environment, environment, occasional changes, circulation, portrayal...
a. Collection of endemic living species b. Collection of exotic living species c. Both a and b d. Collection of local plants and animals Solution: Option (c) Both a and b is the...
a. Family b. Class c. Order d. Division Solution: Option (d) Division is the answer.
a. A particular plant or animal b. A group of intimately related species of animals or plants c. A collection of animals or plants d. None of these Solution: Option (b) A group of intimately...
a. Identification of organ systems of plants and animals and their study b. Identification preservation and study of plants and animals c. Diversity of all kinds of organisms and their relationship...
m
normal to the field. Find the frequency of revolution of the electron in its circular orbit. Does the answer depend on the speed of the electron? Explain.Given, Magnetic field strength (B) = 6.5 G = $6.5 \times {10^{ - 4}}T$ Speed of the electron (v) = $4.8 \times {10^6}m/s$ Charge on the electron (e) = $1.6 \times {10^{ - 19}}C$ Mass of the electron...
T) is maintained. An electron is shot into the field with a speed of 
normal to the field. Explain why the path of the electron is a circle. Determine the radius of the circular orbit.Magnetic field strength (B) = 6.5 G = $6.5 \times {10^{ - 4}}T$ Speed of the electron (v) = $4.8 \times {10^6}m/s$ Charge on the electron (e) = $1.6 \times {10^{ - 19}}C$ Mass of the electron (me)...
The length of a square coil's side (l) is 0.1 m. The current flowing through the coil (I) has a magnitude of 12 A. The number of coil turns (n) is 20. The angle formed by the coil's plane with B...
The length of the solenoid (l) is 80 cm (0.8 m). On the solenoid, there are five levels of windings, each with 400 turns. ∴ Total number of solenoid rotations, N = 5 x 400 = 2000 Diameter of the...
The magnitude of the current flowing in the wire $A({I_A})$ is 8 A The magnitude of the current flowing in wire $B({I_B})$ is 5 A The distance between the two wires (r) is 0.04 m The length of the...
The wire's length (l) is 3 cm or 0.03 m The current running through it (I) is 10 A. The magnetic field strength (B) is 0.27 T. the angle formed by the current and the magnetic field is $\theta ...
The current going through the wire (I) is 8 A. The uniform magnetic field (B) has a magnitude of 0.15 T. The angle between the wire and the magnetic field is $\theta = {30^ \circ }$ We...
The current flowing across the wire has a magnitude of (I) = 50 A. The point B is 2.5 metres east of the wire. As a result, the magnitude of the point's distance from the wire (r) is 2.5 m. The...
The current flowing through the wire (I) has a magnitude of 35 A. The point's distance from the wire (r) is 20 cm (0.2 m). The magnitude of the magnetic field is given at this position by the...
The number of coil turns (n) is 100. Each turn's radius (r) is 8 cm (0.08 m). The magnitude of the current (I) passing through the coil is 0.4 A. The magnitude of the magnetic field at the coil's...
a. – Ae b. – Onae c. – Aceae d. – Ales Solution: Option (c) Aceae is the answer
Solution: Option (a) it decrease is the answer . As we go higher from species to realm, the quantity of normal attributes continues diminishing. Lower the taxa, more are the attributes that...
When nitrogen is compared to phosphorus, nitrogen is comparatively of higher electronegativity. This causes a greater attraction of electrons towards nitrogen in NH3 than towards phosphorus atom...
a) Mg b) Ag c) Zn d) Cu Answer: b) Ag
a) Sulphur b) Oxygen c) Nitrogen d) Iodine Answer: d) Iodine
i) Na ii) Ca iii) Fe iv) Cu a) i and iv b) iii and iv c) i and iii d) i and ii Answer: d) i and ii
a) Na b) Fe c) Cr d) Hg Answer: d) Hg
a) CuSO4 b) CuCO3 c) CuNO3 2 d) CuO Answer: d) CuO
a) Ni and Cr b) Cu and Cr c) Ni and Cu d) Cu and Au Answer: a) Ni and Cr
a) Gallium b) Aluminium c) Zinc d) Silver Answer: c) Zinc
a) Ag3N b) Ag2O c) Ag2 S d) Ag2S and Ag3N Answer: c) Ag2S
i) Au ii) Cu iii) Na iv) K a) i and ii b) i and iii c) ii and iii d) iii and iv Answer: d) iii and iv
CuAuZnAg a) i and ii b) ii and iii c) ii and iv d) iii and iv Answer: c) ii and iv
a) Solubility in water b) Electrical conductivity in solid-state c) High melting and boiling points d) Electrical conductivity in a molten state Answer: b) Electrical conductivity in...
i) KCl ii) HCl iii) CCl4 iv) NaCl a) i and ii b) ii and iii c) iii and iv d) i and (iii) Answer:...
a) H2 SO4 b) HCl c) HNO3 d) All of these Answer: c) HNO3
a) Dil.HCl: Conc. HNO3 3: 1 b) Conc.HCl: Dil. HNO3 3 : 1 c) Conc.HCl: Conc.HNO3 3 : 1 d) Dil.HCl: Dil.HNO3 3: 1 Answer: c) Conc.HCl: Conc.HNO3 3: 1
i) It does not react with water ii) It reacts violently with water iii) It reacts less violently with water iv) Bubbles of hydrogen gas formed stick to the surface of calcium...
a) Na b) Ca c) Mg d) Fe Answer: d) Fe
a) FeO b) Fe2O3 c) Fe3O4 d) Fe2O3 and Fe3O4 Answer: c) Fe3O4
i) Good thermal conductivity ii) Good electrical conductivity iii) Ductility iv) High melting point a) i and ii b) i and iii...
a) ductility b) malleability c) sonorousity d) conductivity Answer: a) ductility
a) Electrical conduction b) Sonorous in nature c) Dullness d) Ductility Answer: c) Dullness
(a) \[2NaCl(I)+2H2O\to 2NaOH(I)+Cl2+H2(g)\] (b) \[2NaCl(aq)+2H2O(aq)\to 2NaOH(aq)+Cl2(g)+H2(g)\] (c) \[2NaCl(aq)+2H2O(I)\to 2NaOH(aq)+Cl2(aq)+H2(aq)\] (d) \[2NaCl(aq)+2H2O(I)\to...
(a) \[H2{{O}^{+}}+C{{l}^{-}}\] (b) \[H2{{O}^{+}}+O{{H}^{-}}\] (c) \[C{{l}^{-}}+O{{H}^{-}}\] (d) unionised \[HCl\] Answer: (a) \[H2{{O}^{+}}+O{{H}^{-}}\]
(a) Bitter and change red litmus to blue (b) Sour and change red litmus to blue (c) Sour and change blue litmus to red (d) Bitter and change blue litmus to red Answer: (c) Sour and change blue...
(i) It does not ionise in the solution as it is a covalent compound. (ii) It ionises in the solution (iii) It gives both hydrogen and hydroxyl ion in the solution (iv) It forms hydronium ion in the...
(a) Red (b) Yellow (c) Yellowish green (d) Blue Answer: (c) Yellowish green
Column (A)Column (B)(A) Bleaching powder(i) Preparation of glass(B) Baking soda(ii) Production of \[H2\]and \[Cl2\](C) Washing soda(iii) Decolourisation(D) Sodium chloride(iv) Antacid (a) A—(ii),...
(a) All metal carbonates react with acid to give a salt, water and carbon dioxide (b) All metal oxides react with water to give salt and acid (c) Some metals react with acids to give salt and...
(a) \[NaOH\] (b) \[KOH\] (c) \[NH4OH\] (d) \[C2H5OH\] Answer: (d) \[C2H5OH\]
(a) Hydrochloric acid (b) Citric acid (c) Sulphuric acid (d) Nitric acid Answer: (b) Citric acid
(a) Hydrochloric acid (b) Sulphuric acid (c) Nitric acid (d) Aqua regia Answer: (d) Aqua regia
(i) Ionisation (ii) Neutralisation (iii) Dilution (iv) Salt formation (a) (i) and (ii) (b) (i) and (iii) (c) (ii) and (iii) (d) (ii) and (iv) Answer: (b) (i) and (iii)
(a) Litmus (b) Turmeric (c) Vanilla essence (d) Petunia leaves Answer: (c) Vanilla essence
(a) Marble (b) Limestone (c) Baking soda (d) Lime Answer: (d) Lime
(a) Lime juice (b) Human blood (c) Lime water (d) Antacid Answer: (a) Lime juice
The below diagram was set up. Which among the following statement(s) is(are) correct? Bulb will not glow because the electrolyte is not acidicBulb will glow because NaOH is a strong base and...
(i) washing soda (ii) bleaching powder (iii) baking soda (iv) slaked lime (a) (i) and (ii) (b) (i), (ii) and (iv) (c) (i) and (iii) (d) (i), (iii) and (iv) Answer: (a) (i) and...
(a) hydrochloric acid (b) tartaric acid (c) acetic acid (d) sulphuric acid Answer: (b) tartaric acid
(a) acidic (b) neutral (c) basic (d) corrosive Answer: c) Basic
(i) Higher the pH, stronger the acid (ii) Higher the pH, weaker the acid (iii) Lower the pH, stronger the base (iv) Lower the pH, weaker the base (a) (i) and (iii) (b) (ii) and (iii) (c) (i) and...
(a) less than 7 (b) more than 7 (c) equal to 7 (d) equal to 0 Answer: (a) less than 7
(i) It turns lime water milky (ii) It extinguishes a burning splinter (iii) It dissolves in a solution of sodium hydroxide (iv) It has a pungent odour (a) (i) and (ii) (b) (i), (ii) and (iii) (c)...
(a) Wash the hand with saline solution (b) Wash the hand immediately with plenty of water and apply a paste of sodium hydrogen carbonate (c) After washing with plenty of water apply a solution...
Water < Acetic acid < Hydrochloric acidWater < Hydrochloric acid< Acetic acidAcetic acid< Water < Hydrochloric acidHydrochloric acid< Water<Acetic acid Answer: 1. Water <...
(a) Lemon juice (b) Vinegar (c) Common salt (d) An antacid Answer: (d) An antacid
(a) basic (b) acidic (c) neutral (d) amphoteric Answer: (a) basic
(a) strong acid and strong base (b) weak acid and weak base (c) strong acid and weak base (d) weak acid and strong base Answer: (d) weak acid and strong base
(a) Blue vitriol (b) Baking soda (c) Washing soda (d) Gypsum Answer: (b) Baking soda
(a) absorb the evolved gas (b) moisten the gas (c) absorb moisture from the gas (d) absorb Cl– ions from the evolved gas Answer: (c) absorb moisture from the gas
(a) Baking powder (b) Lime (c) Ammonium hydroxide solution (d) Hydrochloric acid Answer: (d) Hydrochloric acid
(i) The temperature of the solution increases (ii) The temperature of the solution decreases (iii) The temperature of the solution remains the same (iv) Salt formation takes place (a) (i) only...
The general trends in chemical properties of the group – 15 are as follows:(i) Reactivity towards hydrogen:The elements present in group 15 undergo a reaction with hydrogen to form hydrides of type...