A narrow uniform glass tube 80 cm long and open at both ends is half immersed in mercurry. Then the top of the tube is closed and it is taken out of mercury. A column of mercury 22 cm long then remains in the tube. What is the atmospheric pressure?

A glass tube 80 cm long and open ends is half immersed in mercury. Then the top of the tube is closed and it is taken out of the mercury. A column of murcury 20 cm long then remains in the tube. The atmospheric (in cm of Hg) is (assume temperature to be constant )

A tube 1.5 m long and closed at on end is half filled with mercry and is then inverted with its open ends just dipping into a mercury tough.Find the height of mercury in the tube if the reading of the barometer is 0.75 m.

A narrow uniform glass tube contains air enclosed by 15 cm long thread of mercury. When the tube is vertical with open end uppermost, the air column is 30 cm long. When the tube is inverted, the length of air column becomes 45 cm. Calculate the atmospheric pressure.

A horizontal uniform glass tube of 100cm length is sealed at both ends contains 10 cm mercury column in the middle , the temperature and pressure of air on either side of mercury column are repectively 31^(@)C and 76cm of mercury, if the air column at one end is kept at 0^(@)C and the other end at 273^(@)C then pressure if air which is 0^(@)C is (in cm of Hg )

A cylindrical tube open at both ends is made of metal. The internal diameter of the tube is 6 cm and length of the tube ie 10 cm. If the thickness of the metal used is 1 cm, then the outer curved surface area of the tube is:

A uniform tube closed at one end, contains a pallet of mercury 4 cm long. When the tube is kept vertically with closed end upwards, the length of air column between closed end and mercury pallet is 10 cm. the tube is inverted so that open end becomes upwards. find the length of trapped air column (in cm) trapped. take atmospheric pressure 76 cm of Hg.

A barometer tube is inclined at an angle of 30^@ with horizontal direction. Calculate length of mercury column in tube if atmospheric pressure is 76 cm of mercury.

The capillary tube is dipped in water vertically it is sufficiently long so that water rises to maximum height h in the tube te length of the portion immersed in water is lgth . The lower end of the tube is closed the tube is taken out and opened again then find length of the water column remaining in the tube.