A parallel sided block of glass of refractive index `1.5`which is `36`mm thick rests on the floor of
Channel: Doubtnut
Date: 23/08/2020

A parallel sided block of glass of refractive index `1.5`which is `36`mm thick rests on the floor of a tank which is filled with water (Refraction index=`4//3`).The difference between apparent depth of the floor at `A &B`when seen from vertically above is equal to