In the given figure rasy incident on an interface would converge `10cm` below the interface if they continues to move in straight lines without bending. But due to refraction, the rays will bend and meet some where else. Find the distance of meeting point of refracted rasy below the interface, assuming the rays to be making small angles with the normal to the interface.

Answer

`25 cm`

Explanation

Apparent depth `= (n_(1))/(n_(2)) xx d = (5)/(2) xx 10 = 25cm`