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    Question

    Which of the following statement is true for a

    wavelength of 1000 nm. A p-n photodiode is fabricated from a semiconductor with band gap of 1.9 eV.
    A The photodiode can detect signal once the energy of signal is increased. Correct Answer Incorrect Answer
    B The energy of a signal of given wavelength is more than the specified band gap Correct Answer Incorrect Answer
    C The photodiode can easily detect signal Correct Answer Incorrect Answer
    D The photodiode cannot detect signal Correct Answer Incorrect Answer

    Solution

    The correct answer is D

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