Ray Optics and Optical Instruments

Question: Time taken by the sunlight to pass through a window of thickness 4 mm whose refractive index is 1.5 is

1) $2\times {{10}^{-8}}$ sec

2) $2\times {{10}^{8}}$ sec

3) $2\times {{10}^{-11}}$ sec

4) $2\times {{10}^{11}}$ sec

Solution:

Explanation: No Explanation

Refraction of Light at Plane Surfaces

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