Electron hole recombination at $p - n$ junction may lead to emission to :

Photons

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Heat

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Electrons

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All of the above

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Solution

The correct option is B Photons
Electron-hole recombination is demonstrated in the light-emitting diode (LED), where the electrons recombine with holes to release energy as photons.

Option A is correct.

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Similar questions

In an unbiased p-n junction, holes diffuse from the p-region to n-region because

(a) free electrons in the n-region attract them.

(b) they move across the junction by the potential difference.

(d) All the above.

p

n

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