Time taken by the sunlight to pass through a window of thickness … - Vidyadip

MCQ

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

A
$2 \times 10^{-8} sec$
B
$2 \times 10^8 sec$
✓
$2 \times 10^{-11} sec$
D
$2 \times 10^{11} sec$

✓

Answer

Correct option: C.

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

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

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