Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below. The correct reading of mass is 3.0 g. Based on given data, mark the correct option out of the following statements. Student Readings

Home » Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below. The correct reading of mass is 3.0 g. Based on given data, mark the correct option out of the following statements. Student Readings

Chemistry | Class 11 | Exercise 1 | NCERT | Some Basic Concepts of Chemistry

Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below. The correct reading of mass is 3.0 g. Based on given data, mark the correct option out of the following statements. Student Readings

	(i)	(ii)
A	3.01	2.99
B	3.05	2.95

(i) Results of both the students are neither accurate nor precise.

(ii) Results of student A are both precise and accurate.

(iii) Results of student B are neither precise nor accurate.

(iv) Results of student B are both precise and accurate.

Answers:

Correct Answer: (ii) Results of student A are both precise and accurate

Explanation: The A and B students have average reading which is close to correct reading that is 3g. The recordings of student A are very accurate as they differ by ± 0.01, while readings recorded by student B differ by ± 0.05. Hence, student A results are more precise and accurate. Accuracy means the closeness of the various dimensions by the same quantity and accuracy is a testament to the particular value rather than the true value of the results. Student A results are very close to 3g.

i

Find the vector equation of the line passing through the point with position vector and parallel to the vector Deduce the Cartesian equations of the line.

A line passes through the point (2, 1, -3) and is parallel to the vector Find the equations of the line in vector and Cartesian forms.

A line passes through the point (3, 4, 5) and is parallel to the vector Find the equations of the line in the vector as well as Cartesian forms.

Question consists of two statements, namely, Assertion (A) and Reason (R). For selecting the correct answer, use the following code:

Match the following:

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Question consists of two statements, namely, Assertion (A) and Reason (R). For selecting the correct answer, use the following code:

Question consists of two statements, namely, Assertion (A) and Reason (R). For selecting the correct answer, use the following code:

Match the following:

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