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The equation of a sound wave is y=0.0015...

The equation of a sound wave is `y=0.0015sin(62.4x+316t)` the wavelength of this wave is

A

0.2 unit

B

0.1 unit

C

0.3 unit

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
General equation of plane progressive wave is given by
`y=a sin (kx+omega t)` ...(i)
Given equation
`y=0.0015 sin (62.4 x+316 t)` ...(ii)
Comparing Eqs. (i) and (ii), we get
`k=62.4`
`:. (2pi)/lambda=62.4`
`lambda=(2pi)/62.4=0.1` unit
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