NEETPhysics-Optics

NEET Physics Refractive Index MCQ Question

Type: MCQ-numerical-Medium-Class 12

Time taken by sunlight to pass through a window of thickness 4 mm whose refractive index is 3/2 is

A

2 × 10⁻⁶ sec

B

2 × 10⁸ sec

C

2 × 10⁻¹¹ sec

D

2 × 10¹¹ sec

Correct Answer

Option C

Detailed Explanation

The time taken is calculated using the formula t = d/v, where v = c/n. Substituting the values gives the correct time.

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