JEE Main & Advanced Physics Thermometry, Calorimetry & Thermal Expansion Question Bank Thermometry

  • question_answer
    Two thermometers are used to record the temperature of a room. If the bulb of one is wrapped in wet hanky [AFMC 1997]

    A)            The temperature recorded by both will be same

    B)            The temperature recorded by wet-bulb thermometer will be greater than that recorded by the other

    C)            The temperature recorded by dry-bulb thermometer will be greater than that recorded by the other

    D)            None of the above

    Correct Answer: C

    Solution :

               Due to evaporation cooling is caused which lowers the temperature of bulb wrapped in wet hanky.


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