Which of the following thermometers measures temperature from the thermal radiation emitted by objects?
An open-tube mercury manometer is used to measure the pressure in a gas tank. When the atmospheric pressure is 101,325 \(P_a\), what is the absolute pressure in \(P_a\) in the tank if the height of the mercury in the open tube is 25 cm higher. density of mercury = \(13600kg/m^3, g = 9.8m/s^2\)
The sensitivity of a thermometer is
Pilots uses aneroid barometer to know the height above sea level because
A thick glass tumbler cracks when boiling water is poured into it because
