plz explain me the question Its seems too hard for understanding and give solution too - Physics - Laws Of Motion

Question

plz
explain me the question Its seems too hard for understanding and
give solution too its urgent

Ved Prakash Lakhera · Accepted Answer

Since the balls are identical and there is no change of heat energyexcept change of heat energy due to loss of potential energy
As the balls are stationary in their respective positions and same amount of heat energy is supplied to them so their final temperature are also equalsince there is no loss of gravitational potential energy
Therefore correct answer is option C TA=TB

plz explain me the question ... Its seems too hard for understanding and give solution too..its urgent