Question

The contrast in the fringes in an interference pattern depends on(a) fringe width(b) wavelength(c) intensity ratio of the sources(d) distance between the slits

Answer 1

Hey i think b is the answer

Answer 2

Answer:

c) intensity ratio of the sources

Explanation:

Fringe is one of the dark or light bands produced by interference or the diffraction of light. The distances between fringes are generally very small, because of the short wavelength of light. Fringes are clearer and numerous when produced with the light of a single color.

The fringe contrast is the measure of the interference quality. A good fringe contrast is needed to accurately measure the interference signals. The fringe contrast is scaled between 0 to 1, where 0 is no fringe contrast, and 1 is perfect fringe contrast. Thus, the contrast in the maxima and minimum intensity on the fringe depends on the ratio of intensity ratio of the sources.