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

  • question_answer
    Assertion             :       Specific heat capacity is the cause of formation of land and sea breeze. Reason                 :       The specific heat of water is more than land. [AIIMS 1995]

    A)             If both assertion and reason are true and the reason is the correct explanation of the assertion.

    B)             If both assertion and reason are true but reason is not the correct explanation of the assertion.

    C)             If assertion is true but reason is false.

    D)             If the assertion and reason both are false.

    E) If assertion is false but reason is true.

    Correct Answer: A

    Solution :

                The temperature of land rises rapidly as compared to sea because of specific heat of land is five times less than that of sea water. Thus, the air above the land become hot and light so rises up so because of pressure drops over land. To compensate the drop of pressure, the cooler air starts from sea starts blowing towards lands, so, setting up sea breeze. During night land as well sea radiate heat energy. The temperature of land falls more rapidly as compared to sea water, as sea water consists of higher specific heat capacity. The air above sea water being warm and light rises up and to take its place the cold air from land starts blowing towards sea and so et up breeze.


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