When a mercury barometer is taken to a place at a height of 25 m above the sea level it shows a pressure difference of 2.5mm with respect to the pressure at the surface of the sea. If the relative density of mercury is 13.6, find the average density of air near sea level

Find the pressure, in newton per square meter, 1500m below the surface of the ocean. The relative density of sea water is 1.03.

Convert a pressure of 76 cm of mercury into Nm^(-2) . Density of mercury is 13.6 gm//c c .

The temperature of an air bubble while rising from bottom to surface of a lake remains constant but its diameter is doubled if the pressure on the surface is equal to h meter of mercury column and relative density of mercury is then the depth of lake in metre is -

Due to the presence of certain impurities in mercury, its effective density is 12 g cm^(-3) . What is the barometer reading at sea level ?

The atmoshperic pressure at sea level is determined by what height of mercury comlumn in a barometer?

A place is 37 m above sea level and another is 35 m, below sea level. What is the difference of level between the two places ?

in previous question, if 15 cm of water and spirit each are further poured into the respective arms of the tube. Difference in the level of mercury in the two arms is (Take, relvative density of mercury = 13.6)

In a mercury barometer, at sea level, the normal pressure of the air (one atmosphere) acting on the mercury in the dish supports a 76 cm column of mercury in a closed tube. If you go up in the air, until the density has fallen to half its sea level value, what height of mercury column would you expect?