Physics · 2023
JEE Main · 29 January 2023, Shift 1 · Q20
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…
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:
Official answer
From NTA’s final answer key for this paper.
(4)
C
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.