A faulty barometer shows 72 cm and the air column is 10 cm ,when the true atmospheric pressure is 76 cm of Hg .The barometer reading will be when the lenght of the air column is 5 cm (in cm of Hg) A) 50 B) 68 C)77 D)66.7

The length of a faulty barometer is 90 cm and there is a little air above the mercury. When the atmospheric pressure is 76cm of Hg it reads 74.8 cm. What will be the true atmospheric pressure if the reading on the barometer is 74.3cm ?

The manometer has a water column difference of 50 cm . If the atmospheric pressure is 10^(5) Pa, find the pressure of the gas in the container .

What is meant by the statement “the atmospheric pressure at a place is 76 cm of Hg"? State its value in Pa.

A faulty barometer contains certains amount of air and saturated water vapour . It reads 74.0cm when the atmospheric pressure is 76.0cm of mercury and reads 72.10cm when the atmospheric pressure is 74.0cm of mercury.Saturation vapour pressure at air temperature =1.0cm of mercury. Find the length of the baromerer tube above the mercury level in the reservoir.

If the perimeter of a square is 40cm, then the length of its each side is 20cm (b) 10cm (c) 5cm (d) 40cm

At sea level, the atmospheric pressure is 76 cm of Hg. If air pressure falls by 10 mm of Hg per 120 m of ascent, what is the height of a hill where the barometer reads 70 cm Hg.

Illustrate with the help of a lebelled diagram of a simple barometer that the atmospheric pressure at a place is 76 cm of Hg.

A barometer kept in an elevator reads 76 cm when it is at rest. If the elevator goes up with increasing speed, the reading will be

At the middle of the mercury barometer tube there is a little column of air with the length l_(0) and there is vacuum at the top as shown. Under the normal atmospheric pressure and the temperature of 200 le,vom/ l_(0)=10cm . What will be the length of the air column if the temperature rises to 330 kelvin? (Neglict expansion of the tube)

If water be used to construct a barometer, what would be the height of water column at a standard atmospheric presure (76cm of mercury)?