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  4. Which one of the following statement is not correct in the case of light emitting diodes? A. It is a heavily doped p - n junction. B. It emits light only when it is forward biased. C. It emits light only when it is reverse biased. D. The energy of the light emitted is equal to or slightly less than the energy gap of the semiconductor used. Choose the correct answer from the options given below:

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Q. Which one of the following statement is not correct in the case of light emitting diodes?
A. It is a heavily doped $p - n$ junction.
B. It emits light only when it is forward biased.
C. It emits light only when it is reverse biased.
D. The energy of the light emitted is equal to or slightly less than the energy gap of the semiconductor used.
Choose the correct answer from the options given below:

JEE MainJEE Main 2023Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

LED works in forward biasing and light energy maybe slightly less or equal to band gap.