When a progressive wave is propagating in a medium, at a given instant, two particles which are separated by three wave lengths will have.....

Different displacement in same direction

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Different displacement in opposite direction

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Same displacement in opposite direction

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Same displacement in same direction

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Solution

The correct option is D Same displacement in same direction
Phase difference between two particle which are separated by a single wavelength is $2 π$ hence phase difference corresponding to $3 λ$ is $= 6 π$ which is equivalent to phase difference of $0$ .

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When a progressive wave is propagating in a medium, at a given instant, two particles which are separated by three wave lengths will have.....

The correct option is D Same displacement in same directionPhase difference between two particle which are separated by a single wavelength is 2π hence phase difference corresponding to 3λ is =6π which is equivalent to phase difference of 0.

The correct option is D Same displacement in same direction
Phase difference between two particle which are separated by a single wavelength is $2 π$ hence phase difference corresponding to $3 λ$ is $= 6 π$ which is equivalent to phase difference of $0$ .