Question Library

Which of the following factors does not affect the rate of evaporation of a liquid?

A heat sensitive resistor made of a semiconductor is called?

Which of the following statements is an effect of compressing gas molecules at constant temperature?

Two divers G and H are at depths 20m and 40m, respectively below the water surface in a lake. The pressure on G is p\(_1\) while the pressure on H is P\(_2\), If the atmospheric pressure is equivalent to 10m of water, then the value of P\(_2\)/P\(_1\) is?

Which of the following best describes the energy changes which take place when a steam engine drives a generator which lights a lamp?

In a hydraulic press, the pump piston exerts a pressure of 100 pa on the liquid. what force is exerted in the second piston of cross sectional area 3 m2?

One special advantage of alcohol over mercury as a thermometric liquid is its?

Heat is radiated by hot objects in the form?

The pressure of one mole of an ideal gas of volume 10\(^-2\) m\(^3\) at a temperature of 27°c is [molar gas constant = 8.3 J mol\(^{-1}\) k\(^{-1}\)]

Two metals P and Q of length l1 and l2 are heated through the same temperature difference. If the ratio of the linear expansivities of P to Q is 2:3 and the ratio of lengths is 3:4. What is the ratio of increase in length of P to Q?

I. Density of the liquid. II. Acceleration due to gravity. III. Type of container of the liquid. IV. The constituents of the liquid. which of the above conditions will NOT affect the pressure of fluid?

If the pressure of the vapor on top of an enclosed liquid is equal to the atmospheric pressure, what will be the temperature of the liquid enclosed?

When cold water is poured on a can containing hot water, the can collapses because the?

The thermometric properties of a thermocouple is the change in?

During summer, the balance wheel of a clock expands.what effect does this have on the accuracy of the clock?