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A monochromatic beam of light is travell...

A monochromatic beam of light is travelling from medium A of refractive index `n_1` to a medium B of refractive index . `n_2` In the medium A, there are x number of waves in certain distance. In the medium B, there are y numbers of waves in the same distance. Then, refractive index of medium A with respect to medium B is …

A

`(y)/(x)`

B

`sqrt((x)/(y))`

C

`(x)/(y-x)`

D

`(x)/(y)`

Text Solution

Verified by Experts

The correct Answer is:
D
Since, `lambda prop (1)/(n) ` and wave number `= (1)/(lambda)`
i.e. wave number `prop `n
`therefore " " (n_(1))/(n_(2)) = (lambda_(2))/(lambda_(1)) = (x)/(y)`.
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