Coherent and incoherent addition of waves

If the waves are coherent, then the resultant intensity is given by I = I1 + I2 + 2 √(I1 I2 Cos Θ), where Θ is the phase difference between two waves. For the constructive interference the value of Θ = 0°, so that the Cos Θ = 1 and for the destructive interference the value of  Θ =…… Continue reading Coherent and incoherent addition of waves

Rain and Man problems – How to solve?

Shashank Asked: “How to solve rain and man problems from motion in one dimension?” Answer: The problem is solved using principles of vector addition. There is a simple logic to remember A/C = A/B x B/C If we represent diagrammatically (in the form of vectors) the velocity of rain wrt ground, velocity of man wrt…… Continue reading Rain and Man problems – How to solve?