Two waves  of intensity ration `1 : 9` cross eachother at a point. Calculate
Channel: Doubtnut
Date: 2020-08-02

Two waves  of intensity ration `1 : 9` cross eachother at a point. Calculate the ratio of resultant intensities at a point, when (a) waves are incoherent (b) waves are coherent and differ in phase by `60^(@)`.