a ray of light passes normally through a slab of thickness t. if the speed of light in vaccum be c then time taken by the ray to go across the slab willl be
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4
As there is no property of slab is mentioned specific,
Total time taken by ray is
= t/c
Total time taken by ray is
= t/c
Answered by
1
Answer:
t/c *mu
hope it helps... .
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