A diffraction pattern is formed by blue light, if blue light is replaced by yellow light, then ......

Options

A. the maxima and minima are broadened and become distinct.
B. the maxima and minima are narrow and more crowded.
C. the pattern does not change.
D. diffraction pattern disappears

Answer

A

Explanation

Amount of diffraction depend on `(lambda)/(d)` where d is constant.
`:.` Diffraction depend on `prop lambda and lambda v lt lambda y`
By using yellow light amount of diffraction will be more hence central maximum will be wider and more apart.