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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