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12th Class Physics Semiconducting Devices Question Bank C. B. (MCQs) - Semiconductor Electronics: Materials, Devices and Simple Circuits

  • question_answer
    LED emits light:

    A) when reversed biased.

    B) when forward biased.

    C) when forward or reverse biased.

    D) when heated.

    Correct Answer: B

    Solution :

    Option [b] is correct. Explanation: LED under forward bias emits spontaneous radiation.


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