Assertion :Diode is combination of $n$ -type and $p$ -type semiconductors. Reason: The solar cell is efficient photo-diode used for conversion of light energy into electrical energy.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
A p-n junction diode is a semiconductor device in which p-type semiconducting layer is joined to n-type semiconducting later. It conducts the current in one direction only. The p-side has excess of holes and n-ide has excess of electrons.

Solar cell can be said as photodiode which converts light energy into electrical energy. The current is generated when photons gets absorbed and creates an electron- hole pair (photoelectric effect)

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