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    5. The velocity of heat radiation in a vacuum is?

    Question

    The velocity of heat radiation in a vacuum

    is?
    A Equal to that of light Correct Answer Incorrect Answer
    B Less than that of light Correct Answer Incorrect Answer
    C Greater than that of light Correct Answer Incorrect Answer
    D Equal to that of sound Correct Answer Incorrect Answer

    Solution

    Heat radiation travels as electromagnetic waves, which move at the speed of light in a vacuum.

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    Relevant for Exams:

    • RRB JE

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