Physics

Physics

Problem

The resultant amplitude of two waves of equal amplitude AA becomes maximum when their phase difference θ\theta is a) θ=π,  3π,  5π,…\theta = \pi,\;3\pi,\;5\pi,\ldots b) θ=nπ  (n=0,1,2,…)\theta = n\pi\;(n=0,1,2,\ldots) c) θ=0,  2π,  4π,…\theta = 0,\;2\pi,\;4\pi,\ldots d) θ=π2,  3π2,  …\theta = \tfrac{\pi}{2},\;\tfrac{3\pi}{2},\;\ldots

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