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JEE Main 2012 Physics question

PhysicsWavesJEE Main 2012

A wave represented by the equation is superimposed with another wave to form a stationary wave such that the point x = 0 is node. The equation for the other wave is

Answer: (2)

Solution

A stationary wave needs a wave in the opposite direction. With : $ + =

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Question ID VK-103458