Yellow light is used in single slit diffraction experiment with slit width 0.6 nm. If yellow light is replaced by X-rays then the ......

Options

A. no diffraction pattern will obtained.
B. central maximum obtain wide.
C. central maximum obtain narrow,
D. number of fringes decreases

Answer

A

Explanation

Diffraction depend on `(lambda)/(d)`
For yellow ligth `(lambda)/(d)=(6xx10^(-7))/(6xx10^(-10))=1000`
`:.` Diffraction is possible
but for X-ray `=(lambda)/(d)=(100Å)/(6xx10^(-10))=(100xx10^(-10))/(6xx10^(-10))`
`=(lambda)/(2)=16.25`
which is far less than the yellow light so it will not cause diffraction. So the diffraction pattern will not be obtained.