The length of a mercury column in a mercury-in-glass thermometer is 25 mm at the ice point and 180 mm at the steam point. What is the temperature when the length is 60 mm?

A resistance thermometer has resistance 95.2O mega at the ice point and 138.6 Omega at the steam point. What resistance would be obtained if the actual temperature is 27 ^@C ?

A resistance thermometer has resistance 95.2 Omega at the ice point and 138.6 Omega at the steam point. What resistance would be obtained if the actual temperature is 27^@ C ?

The length of a conducting wire is 50 cm and its radius is 0.5 mm. If its resistance is 30 Omega what is the resistivity of its material?

The length of a conducting wire is 50 cm and its radius is 0.5 mm. If its resistance is 40 Omega what is the resistivity of its material?

A barometer tube of length 90 cm contains some air above mercury. The reading of the mercury level is 74.8 cm when the atmospheric pressure is 76 cm and temperature is 30^@C . If the reading is observed to be 75.4 cm on some another day when temperature is 10^@C , then what will be true pressure?

A 100 watt filament loses all its power by radiation when it is heated to a temperature of 2500 K. If the diameter of the filament is 0.2 mm and the surface emissivity of the filament is 0.5, find the length of the filament. (Stefan's constant sigma = 5.67 xx10^-8 W/m^2k^4 )

A steel wire 2 mm in diameter is just stretched between two fixed points at a temperature of 20^(@)C. If the temperature falls to 10^(@)C, then the tension in the wire is (The coefficient of linear expansion of steel = 11xx10^(-6)//^(@)C and Y for steel 2.1 xx10^(11)N//m^(2))

A capillary tube of radius 1 mm is immersed in a beaker of mercury. The mercury level inside the tube is found to be 0.536 cm below the level in the reservoir. Determine the angle of contact between the mercury and glass.

A barometer tube reads 76 cm of mercury. If the tube is gradually inclined at the angle of 60^@ with vertical, keeping the open end immersed in the mercury reservoir, the length of the mercury column will be.