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Saturday, 15 August 2026
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Physics Past Questions and Answers

Topic: Quantity of Heat

Jamb Physics Questions - Quantity of Heat

Question 1:
The following are some units i. Ns ii. Mm iii. Nm-2 iv. JoK-1. What are the units of latent heat?
  • A I
  • B Ii
  • C Iii
  • D Iv
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Question 2:
The amount of heat required to raise the temperature of a body is
  • A Thermal energy
  • B Thermal conduction
  • C Heat loss
  • D Specific heat capacity
  • E Thermal capacity
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Question 3:
Two closed vessels contain equal volumes of boiling water and are identical except that one is blackened on the outside while the other is polished. Which of the following is correct?
  • A The polished vessel will cool faster because a polished surface is a good radiator
  • B The polished vessel will cool faster because it will absorbe less heat from the room
  • C The black vessel will cool faster because it is a better conductor of heat
  • D The polished vesselwill cool faster because it reflects heat better
  • E The black vessel will cool faster because a black surface radiates heat faster than a polished one
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Question 4:
What are the units of thermal conductivity?
  • A Kg.m.sec<sup style='font-size: smaller;'>2</sup>
  • B Joule sec<sup style='font-size: smaller;'>-1</sup>m<sup style='font-size: smaller;'>-1</sup>k<sup style='font-size: smaller;'>-1</sup>
  • C Kg.m
  • D Newton sec<sup style='font-size: smaller;'>-1</sup>m<sup style='font-size: smaller;'>2</sup>
  • E M<sup style='font-size: smaller;'>3</sup>
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Question 5:
A given quantity of heat increases the temperature of 150grams of water from 9oC to 15oC and increases the temperature of oil of 100grams from 9oC to 25oC. The ratio of the specific heat of oil to that of water is
  • A 0.36
  • B 0.46
  • C 0.56
  • D 0.76
  • E 0.86
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