Latent Heat Quiz PDF: Questions and Answers - 31

MCQ 151: The unit of latent heat of fusion(L_f) is

1. kg m^-3
2. Watt
3. Newton
4. Joule

MCQ 152: In general, a good emitter of radiant heat is also a

1. good absorber of radiant heat
2. poor absorber of radiant heat
3. poor emitter of radiant heat
4. none of the above

MCQ 153: If p is the pressure, F is the force and A is the area, then we can calculate pressure by

1. p = F + A
2. p = 1/2(AF)
3. p = A/F
4. p = F/A

MCQ 154: If a book is moving towards the left, friction will act towards

1. down
2. up
3. right
4. left

MCQ 155: If the temperature of the substance rises, it is due to the increase in the

1. average potential energy
2. average kinetic energy
3. average chemical energy
4. average heat energy