The equation of a wave is given by y = a sin , where x and…

Physics Wave and Sound Equation of Sound Wave, Wavelength, Frequency, Pressure and Displacement Amplitude MCQ (Single Correct)

The equation of a wave is given by y = a sin , where x and y are in meter and t in second; then velocity of wave is:

0.1 m/s

10 m/s

100 m/s

1000 m/s

Text Solution

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The correct answer is:

The standard wave equation is

y = a sin(ꞷt – kx)

The given wave equation is

y = a sin

Compare it with the standard wave equation we obtain

ꞷ = 100, k =

Velocity of the wave,

v = = 100 × 10 = 1000 m/s

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