7th Class Science Heat Question Bank Heat

  • question_answer
    DIRECTIONS: Read the following three statements carefully and choose the correct option. Statement-1: The bulb of one thermometer is spherical while that of the other is cylindrical. Both have equal amount of mercury. The response of the cylindrical bulb thermometer will be quicker. Statement-2: Heat conduction in a body is directly proportional to cross-sectional area. Statement-3: The range of clinical thermometer is \[35{}^\circ C\] to \[42{}^\circ C\]

    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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