waves

Related Questions

• Fundamental frequency of sonometer wire is $n$. If the length, tension and diameter of wire are tripled, the new fundamental frequency is

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• Beats are produced by two waves given by ${{y}_{1}}=a\sin 2000\,\pi t$ and ${{y}_{2}}=a\sin 2008\,\pi t$. The number of beats heard per second is

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• The number of waves contained in unit length of the medium is called

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• A source of sound placed at the open end of a resonance column sends an acoustic wave of pressure amplitude ${{\rho }_{0}}$ inside the tube. If the atmospheric pressure is ${{\rho }_{A}},$ then the ratio of maximum and minimum pressure at the closed end of the tube will be

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• A source of sound and listener are approaching each other with a speed of 40 m/s. The apparent frequency of note produced by the source is 400 cps. Then, its true frequency (in cps) is (velocity of sound in air = 360 m/s)

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