Question

If the atmospheric pressure is 76 CM of Mercury at what depth of water the pressure will become 4 atmosphere

Answer 1

Answer:

At surface there is a pressure of 1 atmosphere. Hence we need to find the depth of water to get pressure of 3 atmosphere.

 

Since for mercury the liquid column height is 76 cm and its density 13.6 g/cm3 , the required depth is 3×76×13.6 = 3101 cm = 31.01 m

Explanation:

Answer 2

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the depth at which the pressure of water is 4 atm is 31m.