﻿ The number of waves in a 4-cm thick strip of glass is the same as in 5-cm water, when the same monochromatic light travels in them. If the refractive index of water be 4/3, what will be of glass? : Kaysons Education

# The Number Of Waves In A 4-cm Thick Strip Of Glass Is The Same As In 5-cm Water, When The Same Monochromatic Light Travels In Them. If The Refractive Index Of Water Be 4/3, What Will Be Of Glass?

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## Question

### Solution

Correct option is

5/3

Where λg and λw are wavelengths of light in glass and water respectively.

Now, the wavelength of light in a medium in inversely proportional to the refractive index of that medium. Thus

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