What is the real depth of a swimming pool when its bottom appears to be raised by 1 m ? Given refractive index of water is `4//3`.

A rectangular tank 8m deep is full of water. By how much does the bottom appear to be raised if the refractive index of water is 4//3 ?

A coin placed at the bottom of a beaker appears to be raised by 4.0 cm. If the refractive index of water is 4/3, find the depth of the water in the beaker.

The inner bottom of a tub filled with water is stained with a mark. The water is filled to a height of 7 cm. Calculate the distance by which the stain appears to be raised. Refractive index of water is 1.33.

What is the radius of the illumination when seen above from inside a swimming pool from a depth of 10 m on a sunny day? What is the total angle of view? [ Give refractive index of water is 4/3]

A coin at the bottom of a trough containing water to a depth of 15 cm appears to be 3.75 cm raised above from the bottom. Calculate the refractive index of water.

The apparent depth of a liquid in a vessel is 15 cm, when its real depth is 20 cm. find the refractive index of the liquid.