waves

Related Questions

• A whistle giving out 450 Hz approaches a stationary observer at a speed of 33 m/s. The frequency heard by the observer in Hz is

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• Equation of the progressive wave is given by : $y=a\sin \pi (40t-x)$ where $a$ and $x$ are in metre and $t$ in second. The velocity of the wave is

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• In a closed organ pipe the frequency of fundamental note is 50 Hz. The note of which of the following frequencies will not be emitted by it

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• Tuning fork ${{F}_{1}}$ has a frequency of 256 Hz and it is observed to produce 6 beats/second with another tuning fork ${{F}_{2}}$. When ${{F}_{2}}$ is loaded with wax, it still produces 6 beats/second with ${{F}_{1}}$. The frequency of ${{F}_{2}}$ before loading was

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