Login/Sign Up
Home » The refractive indexes of four substances P, Q, R, and S are 1.77, 1.50, 2.42, and 1.31 respectively. When light travelling in air is incident on these substances at equal angles, the angle of refraction will be the maximum in:a) substance Pb) substance Qc) substance Rd) substance S
The refractive indexes of four substances P, Q, R, and S are 1.77, 1.50, 2.42, and 1.31 respectively. When light travelling in air is incident on these substances at equal angles, the angle of refraction will be the maximum in:
a) substance P
b) substance Q
c) substance R
d) substance S
CBSE | Class 10 | Lakhmir Singh | Physics | Refraction of Light
The refractive indexes of four substances P, Q, R, and S are 1.77, 1.50, 2.42, and 1.31 respectively. When light travelling in air is incident on these substances at equal angles, the angle of refraction will be the maximum in:
a) substance P
b) substance Q
c) substance R
d) substance S

d) material S is the right answer.

Explanation:
Refractive index =\frac{\sin i}{\sin r}

Because the value of (Sin i) is the same in all circumstances, the value of (Sin r) will be the highest for the lowest refractive index. This means that with a minimal refractive index, the angle of refraction will be highest, and material S has a minimum refractive index.

i

More Material