Question:medium
The apparent frequency of a siren increases as the source approaches a stationary observer. This phenomenon is known as
The apparent frequency of a siren increases as the source approaches a stationary observer. This phenomenon is known as
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Remember that for an approaching source, the observed frequency increases due to the compression of wavefronts. For a receding source, the observed frequency decreases because the wavefronts are stretched out.
Updated On: May 31, 2026
- Doppler Effect
- Resonance
- Interference
- Diffraction
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The Correct Option is A
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