p) When an uncharged capacitor is connected to a battery, it becomes charged and energy isstored in the capacitor. (A) is the correct option
q) When a gas in an adiabatic container fitted with an adiabatic piston is compressed bypushing the piston
i) the internal energy of the system increases
ΔU = Q - W = 0 - (-PdV) = +PdV
ii) Mechanical energy is proceeded to the piston which is converted into kinetic energy ofthe gas molecules.
r) None of the options in column I matches. As the gas in a rigid container gets cooled, theinternal energy of the system will decrease. The average kinetic energy per molecule willdecrease.
s) When a heavy nucleus initially at rest splits into two nuclei of nearly equal masses andsome neutrons are emitted then
i) Internal energy of the system is converted into mechanical energy (precisely speakingkinetic energy) and
ii) Mass of the system decreases which converts into energy
t) When a resistive wire loops is placed in a time varying magnetic field perpendicular to itsplane.
i) Induced current shows in the loop due to which the energy of system is increased.