What is real depth?

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 .

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.

What is the depth of the submarine ?

What is real image?

Name the interior most part of the earth. What is its depth?

If pressure at half the depth of a lake is equal to 2/3 pressure at the bottom of the lake then what is the depth of the lake.

If pressure at half the depth of a lake is equal to 2//3 pressure at the bottom of the lake then what is the depth of the lake ?

If pressure at half the depth of a lake is equal to 2//3 pressure at the bottom of the lake then what is the depth of the lake ?