(B) The wavelength $\lambda$ is given by $\lambda = \frac{v}{f} = \frac{350}{50} = 7 ~m$. The distance $x$ covered by the wave in time $t = 0.01 ~s$ i

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(B) The wavelength $\lambda$ is given by $\lambda = \frac{v}{f} = \frac{350}{50} = 7 ~m$. The distance $x$ covered by the wave in time $t = 0.01 ~s$ is $x = v \times t = 350 \times 0.01 = 3.5 ~m$. The phase change $\Delta \phi$ is given by the formula $\Delta \phi = \frac{2\pi}{\lambda} \times x$. Substituting the values,$\Delta \phi = \frac{2\pi}{7} \times 3.5 = \frac{2\pi}{7} \times \frac{7}{2} = \pi ~rad$.

Class 11 Chemistry Data Entry - Chemistry Level 0 of all question bank

$A$ progressive wave of frequency $50 ~Hz$ is travelling with velocity $350 ~m/s$ through a medium. The change in phase at a given time interval of $0.01 ~s$ is

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$\frac{\pi}{2} ~rad$
B
$\pi ~rad$
C
$\frac{\pi}{4} ~rad$
D
$\frac{3\pi}{2} ~rad$

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$A$ progressive wave of frequency $50 ~Hz$ is travelling with velocity $350 ~m/s$ through a medium. The change in phase at a given time interval of $0.01 ~s$ is

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