Assertion :The images formed by total internal reflections are much brighter than those formed by mirrors or lenses. Reason: There is no loss of intensity in total internal reflections.

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 A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
In total internal reflection, $100 %$ of incident light is reflected back into the same medium, and there is no loss of intensity, while in reflection from mirrors and refraction from lenses, there is always some loss of intensity. Therefore images formed by total internal reflection are much brighter than those formed by mirrors or lenses.
So,Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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