waves

Related Questions

• An unknown frequency x produces 8 beats per seconds with a frequency of 250 Hz and 12 beats with 270 Hz source, then x is

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• The following phenomenon cannot be observed for sound waves

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• Which of the following is not true for this progressive wave $y=4\sin 2\pi \left( \frac{t}{0.02}-\frac{x}{100} \right)$ where $y$ and $x$ are in cm & $t$ in sec

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• Two sound waves (expressed in CGS units) given by ${{y}_{1}}=0.3\sin \frac{2\pi }{\lambda }(vt-x)$ and ${{y}_{2}}=0.4\sin \frac{2\pi }{\lambda }(vt-x+\theta )$ interfere. The resultant amplitude at a place where phase difference is $\pi /2$ will be

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• A source and an observer move away from each other with a velocity of 10 m/s with respect to ground. If the observer finds the frequency of sound coming from the source as 1950 Hz, then actual frequency of the source is (velocity of sound in air = 340 m/s)

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