(C) The angular frequency $\omega$ is given by $\omega = 2\pi f$, where $f = 50\text{ Hz}$.$\omega = 2 \times \pi \times 50 = 100\pi\text{ rad/s}$.The

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(C) The angular frequency $\omega$ is given by $\omega = 2\pi f$, where $f = 50\text{ Hz}$.$\omega = 2 \times \pi \times 50 = 100\pi\text{ rad/s}$.The change in phase $\Delta\phi$ for a time interval $\Delta t$ is given by $\Delta\phi = \omega \Delta t$.Given $\Delta t = 0.01\text{ s}$.$\Delta\phi = 100\pi \times 0.01 = \pi\text{ rad}$.Thus, the change in phase is $\pi\text{ rad}$.

Class 11 Physics Waves and Sound Progressive Waves

Medium

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

MHT CET 2026 All MHT CET

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

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

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