waves

Related Questions

• A cylindrical tube, open at both ends, has a fundamental frequency ${{f}_{0}}$ in air. The tube is dipped vertically into water such that half of its length is inside water. The fundamental frequency of the air column now is

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• A source of sound emitting a note of frequency 200 Hz moves towards an observer with a velocity v equal to the velocity of sound. If the observer also moves away from the source with the same velocity v, the apparent frequency heard by the observer is

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• If the equation of transverse wave is $y=5\sin 2\pi \left[ \frac{t}{0.04}-\frac{x}{40} \right]$, where distance is in cm and time in second, then the wavelength of the wave is

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