UPSC Physics Heat Question Bank Sound, Oscillations, Heat and Thermodynamics

  • question_answer
          Consider the following statements:                         [CDS]
    1. Steam at \[100{}^\circ C\] and boiling water at \[100{}^\circ C\] contain same amount of heat.
    2. Latent heat of fusion of ice is equal to the latent heat of vaporization of water.
    3. In an air-conditioner, heat is extracted from the room air at the evaporator coils and is rejected out at the condenser coils.
    Which of these statements is/are correct?

    A) 1 and 2                        

    B) 2 and 3

    C) Only 2              

    D)      Only 3

    Correct Answer: D


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