Assertion :Electromagnetic lenses are used in light microscope whereas achromatic lenses are used in electron microscope. Reason: Resolving power of a scanning electron microscope is 0-2 $˚ A$ .

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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Assertion and reason are incorrect.

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Solution

The correct option is D Assertion and reason are incorrect.
Electromagnetic lenses are used in an electron microscope whereas achomatic lenses are used in a light microscope.
The resolving power of a scanning electron microscope is 0.1 A $^{0}$
So, the correct answer is 'Both assertion and reason are incorrect'

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