A flat plate is moving normal to its plane through a gas under the action of a constant force F. The gas is kept at a very low pressure. The speed of the plate v is much less than the average speed u of the gas molecules. Which of the following options is/are true ?

The temperature at which the average speed of perfect gas molecules is double than at 17^(@)C is

Which of the following processes would lead to an increase in the average speed of the molecules of an ideal gas system?

A particle of mass M moves with constant speed along a circular path of radius r under the action of a force F. Its speed is

The r.m.s speed of the molecules of an ideal gas Is V_0 If pressure of the gas is halved but temperature is kept constant then r.m.s. speed of the gas molecule will be

Consider a thin square plate floating on a viscolas liquid in a large tank. The heighth of the liquid in the tank is much less than the width of the tank. The floating plate is pulled horizontally with a constant velocity u_(0). Which of the following statements is (are) true?

Find an expression for, the acceleration and speed of a trolley A under the action of a constant force F if it contains sand that pours out through the floor at the rate of mu per second. The speed of the trolley at t=0 was v=0 and the initital mass of sand and trolley was M_(0)

A curved road is banked for speed v_(0) . When a car moves along the road with a constant speed v , the force the friction between the road and the tyres is F. Which of the following statements(s) is (are) correct ?

One mole of an ideal gas at STP is heated in an insulated closed container until the average speed of its molecules is doubled. Its pressure woluld therefore increase by factor.

An ideal diatomic gas with C_V = (5 R)/2 occupies a volume (V_(i) at a pressure (P_(i) . The gas undergoes a process in which the pressure is proportional to the volume. At the end of the process, it is found that the rms speed of the gas molecules has doubles from its initial value. Determine the amount of energy transferred to the gas by heat.