The equation of a sound wave is $y = 0.0015 sin (62.8 x + 316 t)$ , the wave length of this wave is

0.2 u n i t

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0.1 u n i t

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0.3 u n i t

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0.5 u n i t

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Solution

The correct option is B $0.1 u n i t$
$y = A sin (ω t + k x)$
$k = 62.8$
$λ = \frac{2 π}{k}$
$= \frac{2 π}{62.8}$
$= 0.1 u n i t$

Suggest Corrections

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