Two waves of equal amplitude and frequency interfere each other. The ratio of intensity when the two waves arrive in phase to that when they arrive `90^@` out of phase is

Waves from two different sources overlap near a particular point. The amplitude and the frequency of the two waves are same. The ratio of the intensity when the two waves arrive in phase to that when they arrive 90^(@) out phase is

Waves from two different sources overlap near a particular point. The amplitude and the frequency of the two waves are the same.The ratio of the intensity,when the two waves arrives in the phase to that when they arrive 90^(@) out of phase is

Waves from two different sources overlap near a particular point. The amplitude and the frequency of the two waves are the same.The ratio of the intensity,when the two waves arrives in the phase to that when they arrive 90^(@) out of phase is

Waves of same amplitude and same frequency from two coherent source overlap at a point. The ratio of the resultant intensity when they arrive in phase to that when they arrive with 90^(@) phase difference is

Waves of same amplitude and same frequency from two coherent source overlap at a point. The ratio of the resultant intensity when they arrive in phase to that when they arrive with 90^(@) phase difference is