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Reflection of Sound Waves

How to find p...

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How to find phase difference in standing wave.

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How to calculate phase difference between the two waves?

Q. For destructive superposition of waves, the phase difference between the waves should be equal to .......................

Q. assertion - The interference of two identical waves moving in same direction produces standing waves.
Reason - Various elements of standing waves do not remain in constant phase.

Q. The equation of a stationary and a travelling waves are

y_{1} = a sin k x cos ω t

y_{2} = a sin (ω t - k x)

respectively. The phase difference between two points,

x_{1} = \frac{π}{3 k}

x_{2} = \frac{3 π}{2 k}

ϕ_{1}

in the standing wave

y_{1}

ϕ_{2}

in travelling wave

y_{2}

\frac{ϕ_{1}}{ϕ_{2}}

Q. For constructive superposition of waves, phase difference between the waves should be equal to .......................

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