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A glass slab of thickness 4 cm contains ...

A glass slab of thickness `4 cm` contains the same number of waves as `5 cm` of water, when both are traversed by the same monochromatic light. If the refractive index of water is `4//3,` then refractive index of glass is

A

`(5)/(3)`

B

`(5)/(4)`

C

`(16)/(15)`

D

`(3)/(2)`

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The correct Answer is:
A
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