Assertion :Intrinsic semiconductors are doped Reason: Holes or electrons are supplied by a foreign atom acting as an impurity

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 D Both Assertion and Reason are incorrect
Intrinsic semiconductors are undoped. Statement of the reason is correct but not a correct explanation for assertion.

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