$A$ monoatomic gas is supplied heat $Q$ very slowly keeping pressure constant. The work done by the gas will be

$A$ particle is moving along a straight line with increasing speed. Its angular momentum about a fixed point on this line ............

$A$ conducting loop carrying a current $I$ is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency to

If $x = \sqrt{\frac{2+\sqrt{3}}{2-\sqrt{3}}}$,then $x^2(x-4)^2$ is equal to:

$A$ large horizontal surface moves up and down in $SHM$ with an amplitude of $1 \, cm$. If a mass of $10 \, kg$ (which is placed on the surface) is to remain continually in contact with it,the maximum frequency of $SHM$ will be ... $Hz$.

In a transistor,the collector current is always less than the emitter current because: