Coherent sources are characterized by the same

Coherent sources are those sources for which

Two light sources are coherent when

Two light sources are coherent when

S_(1) and S_(2) are two coherent sources. The intensity of both sources are same. If the intensity at the point of maxima is 4Wm^(-2) , the intensity of each source is

What are coherent sources of light ? Why are coherent sources required to obtain sustained interference pattern ?

What is meant by coherent sources? What are the two methods for obtaining coherent sources in the laboratory?

Light from two coherent sources of same amplitude and same wavelength illuminates the screen. The intensity of the central maximum is I. If the sources were noncoherent, the intensity at the same point will be

Two light sources are said to be coherent if they are obtained from