A whistle emitting a sound of frequency 440 Hz is tied to a string of 1.5 m length and…
Physics · JEE Advanced · NTA Exams — Oscillations and Waves
A whistle emitting a sound of frequency 440 Hz is tied to a string of 1.5 m length and rotated with an angular velocity of 20 rad/s in the horizontal plane. Then the range of frequencies heard by an observer stationed at a large distance from the whistle will be (Speed of sound v = 330 m/s)
- 400.0 Hz to 484.0 Hz
- 403.3 Hz to 480.0 Hz
- 400.0 Hz to 480.0 Hz
- 403.3 Hz to 484.0 Hz
Answer
(D) 403.3 Hz to 484.0 Hz
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