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Two sinusoidal waves travelling in oppos...

Two sinusoidal waves travelling in opposite directions interfere to produce a standing wave described by the equation
`y=(1.5m)sin (0.400x) cos(200t)`
where, x is in meters and t is in seconds. Determine the wavelength, frequency and speed of the interfering waves.

Text Solution

Verified by Experts

The correct Answer is:
A, C
`lambda = (2pi)/k = (2pi)/0.4 = 15.7 m`
`f=omega/(2pi) = 200/(2pi) = 31.8 Hz. `
`v= flambda = 500 m//s ` .
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