Question

In Fraunhofer diffraction due to single slit, the angular width of central maximum does 'NOT' depend on ______ 

Options

• the wavelength of light used.

• the ratio of wavelength and slit width.

• width of the slit.

• distance of the slit from the screen.

Answer 1

In Fraunhofer diffraction due to a single slit, the angular width of central maximum does 'NOT' depend on the distance of the slit from the screen.

Explanation:

Angular width θ = `lambda/a` where a is the width of the slit