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A ray of light is incident normally on a...

A ray of light is incident normally on a glass slab of thickness 5 cm and refractive index 1.6. The time taken to travel by a ray from source to surface of slab is same as to travel through glass slab. The distance of source from the surface is

A

4 cm

B

8 cm

C

12 cm

D

16 cm

Text Solution

Verified by Experts

The correct Answer is:
B
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