DEEP WATER

A person deep inside water cannot hear sound produced in air. Why?

A long cylinderical glass vessel has a small hole of radius r at its bottom. The depth to which the vessel can be lowered vertically in a deep water (surface tension S) without any water entering inside is

A steel ball is placed on the surface of water in a deep tank. Water exerts a resistive force which is proportional to the velocity of the ball. The steel sinks into the water:

At NTP water boils at 100^(@)C . Deep down the mine, water will boil at a temperature

Assertion : Whale has a thick layer of fat, called blubber, below its skin. Reason: It uses this fat as the source of energy when deep in water.

A ship has a green light (lambda = 510 nm) on its mast. What colour would be observed for this light by a diver deep inside water. Refractive index for water is mu = (4)/(3) .