waves

Related Questions

• Two tuning forks of frequencies 256 and 258 vibrations/sec are sounded together, then time interval between consecutive maxima heard by the observer is

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• Two adjacent piano keys are struck simultaneously. The notes emitted by them have frequencies ${{n}_{1}}$ and ${{n}_{2}}$. The number of beats heard per second is

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• A device used for investigating the vibration of a fixed string or wire is

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• The first overtone of a stretched wire of given length is 320 Hz. The first harmonic is :

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• The path difference between the two waves ${{y}_{1}}={{a}_{1}}\sin \,\left( \omega t-\frac{2\pi x}{\lambda } \right)$ and ${{y}_{2}}={{a}_{2}}\cos \,\left( \omega t-\frac{2\pi x}{\lambda }+\varphi \right)$ is

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