Time taken by light to travel in two different materials A and B of refractive indices \mu_{A} and \mu_{B} of same thickness is t_{1} and t_{2} respectively. If t_{2}-t_{1}=5 \times 10^{-10} s and the ratio of \mu_{A} to \mu_{B} is 1: 2. Then, the thickness of material, in meter is: (Given v_{ {A}} and v_{ {B}} are velocities of light in A and B materials respectively.) [25-Jul-2022-Shift-1]

Correct Answer is : 5×10−10vAm

JEE Mains 25-July-2022 Shift 1 Solved Paper

Section: Physics

Question : 46 of 90

Marks: +1, -0

Time taken by light to travel in two different materials A and B of refractive indices µA and µB of same thickness is t1 and t2 respectively. If t2−t1=5×10−10 s and the ratio of µA to µB is 1:2. Then, the thickness of material, in meter is: (Given vA and vB are velocities of light in A and B materials respectively.)

[25-Jul-2022-Shift-1]

5×10−10vAm
5×10−10m
1.5×10−10m
5×10−10vBm

Validate

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