Assertion :Static crashes are heard on radio, when lightning flash occurs in the sky. Reason: Electromagnetic waves having frequency of radiowave range, interfere with radiowaves.

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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If Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Lightening flash produces electromagnetic waves. Flash counts of rapid and random electrical fields and current oscillate between group of clouds. Thus many changes oscillate and produce electromagnetic waves. Hence the electromagnetic waves which have frequencies of radio wave range interfere with radio waves which produces static crashes.

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