Two coherent light beams of intensities I and 4I produce interference pattern. The intensity at a point where the phase difference is zero, will b:

Two beams of light of intensities 4I and I interfere. The intensity on the screen, where the phase difference is pi//2 , will be :

Two coherent sources of intensities I_1 and I_2 produce an interference pattern. The maximum intensity in the interference pattern will be

Two coherent sources of intensities I_1 and I_2 produce an interference pattern. The maximum intensity in the interference pattern will be

Two coherent sources of intensities I_1 and I_2 produce an interference pattern. The maximum intensity in the interference pattern will be

Two Lght beams of intensities I_1 and I_2 produce an interference pattern. The contrast between the fringes is the best when :

Two sources of intensity 2I and 8I are used in an interference experiment. The intensity at a point where the waves from two sources superimpose with a phase difference of (a) zero (b) pi//2 and (c ) pi is

Two coherent waves of intensities I and 4I interfere at a point. If the resultant intensity is 3I, then the phase difference between te two waves at the point is