Question

In a single slit diffraction pattern, which of the following is incorrect for fringe pattern?

Options

• Width of the central maximum is twice the width of the secondary maxima or minima.

• Intensities of the secondary maxima are much less than the intensity of the central maxima.

• All secondary maxima and minima are of the same width.

• For a given wavelength, the width of the diffraction pattern is directly proportional to the slit width.

Answer 1

For a given wavelength, the width of the diffraction pattern is directly proportional to the slit width.