NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics Oscillations and Waves-Doppler Effect in Sound Study Material (Page 2 of 2)
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Expression of Doppler Shift when Observer is Moving and Source is Stationary:
- Let, the source and medium are approaching at speed and the speed with which the wave approaches is . The time interval between the arrival of the first and the crests is,
… (401 more equations, 5 figures) …
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Velocity of Sound, Beats, Doppler Effect
Velocity of Sound
The velocity of sound in air is given by
where P is the pressure and p is the density of air.
Beats
When two waves of slightly different frequencies are sounded together. the resulting sound shows variations in loudness which are calle…
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