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

  • question_answer
          Which one of the following is the mode of heat transfer in which warm material is transported so as to displace a cooler material?                                   [NDA]

    A) Conduction only

    B) Convection only

    C) Radiation

    D) Both conduction and convection

    Correct Answer: B

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