Question

In young's double slit experiment the two coherent sources have different intensities . If the ratio of maximum intensity to the minimum intensity in the interference pattern produced is 25:1 . What is the ratio of intensities of the two sources

Answer 1

The two coherent sources of intensity that ratio 2:8produce an interference pattern. The values of maximum and minimum intensitites will be representively where I_(1) is the intensity of first source. Hence the corect answer will be (2).

In the Young's double slit experiment, two coherent sources were generated using diffracted light from a single slit. Note that the waves must have a constant phase difference, so the two slits need not be placed symmetrically from the first slit to observe an interference pattern.

∴ The ratio of the intensities of maxima and minima in the fringe system is 25 : 16.