The intensities of two light sources are I and 91 .If the phase difference between the waves is pi then resultant intensity will be :-

The intensities of two sources are I a nd 9I respectively,If the phase difference between the waves emitted by then is pi then the resultant intensity at the point of observation will be-

For minimum intensity the phase difference between the two waves is

Assertion: Three waves of equal amplitudes interfere at a point. Phase difference between two successive waves is pi/2 . Then, resultant intensity is same as the intensity due to individual wave. Reason: Two different light sources are never coherent.

Interference fringes are produced on a screen by using two light sources of intensities / and 9/. The phase difference between the beams pi/2 is at point P and pi at point Q on the screen. The difference between the resultant intensities at point P and Q is

When two waves of intensities l_1 and l_2 coming from coherent sources interfere at a point P, where phase difference is phi , then resultant intensity (l_(res)) at point P would be

Two light sources with intensity I_(0) each interfere in a medium where phase difference between them us (pi)/2 . Resultant intensity at the point would be.

Two coherent sources each emitting light of intensity I_(0) Interfere, in a medium at a point, where phase different between them is (2pi)/3 . Then, the resultant intensity at that point would be.

If two sources have a randomly varying phase difference f(t), the resultant intensity will be given by: