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The distance between two adjacent partic...

The distance between two adjacent particles which are in the same phase in a progressive wave is 20 cm.
Determine the velocity of the wave if its frequency is 10 Hz.

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Distance between two adjacent particles in phase
= 20 cm = `(lambda)/(2)`
`implies lambda = 40` cm = `0.4`m
Frequently (f) = 10 Hz
`therefore` Velocity = `lambda xx f = 0.4 xx 10 = 4 m s^(-1)`
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