A train approaching a hill at a speed of 40 km/hr sounds a whistle of frequency 580 Hz…
Physics · JEE Advanced · NTA Exams — Oscillations and Waves
A train approaching a hill at a speed of 40 km/hr sounds a whistle of frequency 580 Hz when it is at a distance of 1 km from the hill. A wind with a speed of 40 km/hr is blowing in the direction of motion of train.
Velocity of sound = 1200 km/hr.
Find the frequency of the whistle as heard by an observer on the hill
- 599.33 Hz
- 590.33 Hz
- 582.30 Hz
- 370.22 Hz
Answer
(A) 599.33 Hz
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