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MHT CET Physics question

PhysicsWavesMHT CET

Equation of a plane progressive wave is given by . On reflection from a denser medium, its amplitude to form standing wave remain same as that of the incident wave. The equation of the reflected wave is

Answer: (B)

Solution

Reflection from a denser medium reverses the direction ( in the phase) and adds a phase change of , with unchanged amplitude 0.6, so

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Question ID VK-070264