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7th Class Science Heat Question Bank Heat

  • question_answer
    DIRECTIONS: Read the following three statements carefully and choose the correct option. Statement-1: Room heaters and refrigerators lose most of their heat by convection. Statement-2: A hot surface heat the air next to it. The hot air rises, to be replaced by cooler air which then heat, and so on. Statement-3: Radiation is a method of transfer of heat.

    A) Statement (1) and (3) are incorrect while statement (2) is correct.

    B) Statement (1) and (2) are incorrect while (3) is correct.

    C) All the statements are correct.

    D) All the statements are incorrect.

    Correct Answer: C

    Solution :

        All the statements are correct.


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