Motion of System of Particles and Rigid Bodies — Physics STD 11 — Question

A container contains hydrogen gas at pressure P and temperature T. Another identical container contains helium gas at pressure 2P and temperature T/2. The ratio of the number of molecules of the two gases is

The moment of inertia of a thin uniform ring of mass 1 kg and radius 20 cm rotating about the axis passing through the center and perpendicular to the plane of the ring is –

Which of the following example does not constitute a couple?

The velocity with which a gun suddenly moves backward after firing is –

Ultrasonic waves are those waves which ………

The pressure of a gas contained in a closed vessel is increased by 0.4% when heated by 1°C. The initial temperature was

The kinetic theory of gases breaks down most at ………

Moment of inertia of a uniform solid sphere about an axis passing through the edge along its tangent is –

The dimension of point mass is –

One radian is equal to –