Two coherent sources of intensity ratio $1 : 4$ produce an interference pattern. The fringe visibility will be

The energy in the phenomenon of interference

Which phenomena can be explained by the wave nature of light?

Two monochromatic and coherent point sources of light are placed at a certain distance from each other in the horizontal plane. The locus of all those points in the horizontal plane which have constructive interference will be

Which optical phenomena can be explained by the wave nature of light?

Two waves coming from two coherent sources,having different intensities,interfere. The ratio of their maximum intensity to the minimum intensity is $25$. What is the ratio of the intensities of the sources?