First slide

Stationary waves

Question

When a stationary wave is formed then its frequency is

Easy

A

Same as that of the individual waves
B

Twice that of the individual waves
C

Half that of the individual waves
D

None of the above

Solution

If $y_{incident} = asin (ωt - kx)$ and $y_{stationary} = asin (ωt) coskx$
then it is clear that frequency of both is same ( $ω$ )

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