Assertion: Standard optical diffraction grating scan not be used for discriminating between X-ray wavelengths.
Reason: The grating spacing is not of the order of X-ray wavelengths.

If both assertion and reason are true but the reason is the correct explanation of assertion

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If both assertion and reason are true but the reason is not the correct explanation of assertion

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If assertion is true but reason is false

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If both the assertion and reason are false

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If reason is true but assertion is false

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Solution

The correct option is A If both assertion and reason are true but the reason is the correct explanation of assertion
For diffraction purpose, target should have size of the order of wavelength of light used. So, X-ray cannot be used in standard diffraction grating as target which is spacing between the lines in different grating is large as compared with very short wavelength of X-rays.

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Similar questions

\underset{A B}{\to}

A B

\to τ = \to r \times \to F b u t \to τ \neq \to F \times \to r .

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