📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

    Question

    A copper disc has a hole. If the disc is heated, the

    size of the hole -
    A increases Correct Answer Incorrect Answer
    B decreases Correct Answer Incorrect Answer
    C No change Correct Answer Incorrect Answer
    D first increases and than decreases Correct Answer Incorrect Answer

    Solution

    When a metal plate with a circular hole at its centre is heated, definitely along with the areal expansion of the plate the diameter (sum of two radii) of the circular hole also increases.

    Practice Next
    More Physics GS Questions
    ask-question