Explanation

 by using light of a shorter wavelength in a double-slit interference experiment, the widths of the fringes in the resulting diffraction pattern on the screen would increase.

Concept and Explanation:

Wavelength of light:

The width of the fringes in a double-slit interference pattern is directly related to the wavelength of the light used.

When light with a shorter wavelength, such as blue or violet light, is used, the fringes in the resulting diffraction pattern will be wider compared to using light with a longer wavelength, such as red light.

This phenomenon can be explained by the diffraction of light waves.

Shorter wavelengths diffract more around obstacles and result in broader interference patterns on the screen.