New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Which of the following is used in oven?

    A X-rays Correct Answer Incorrect Answer
    B UV rays Correct Answer Incorrect Answer
    C Microwaves Correct Answer Incorrect Answer
    D Radio waves Correct Answer Incorrect Answer

    Solution

    An oven that uses micro radiation waves as a source of heat in order to cook food as opposed to a fire source. Conceptualized in 1946, Dr. Perry Spencer allegedly discovered the heating properties of microwaves while studying the magnetron. A microwave oven, often colloquially shortened to microwave, is a kitchen appliance that heats food by dielectric heating accomplished with radiation used to heat polarized molecules in food.

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