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Grade 12Wave Motion

Q: A car is moving towards a high cliff. The car driver blows a horn of frequency f. The reflected sound heard by the driver has frequency 2f. If v be the velocity of sound, the velocity of the car, in the same velocity units, will be

Profile image of Amit Anand
14 Years agoGrade 12
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1 Answer

Profile image of Saurabh Kumar
11 Years ago
Use the concept of Dopler’s effect when the source is approaching towards observer...
Consider the apparent frequency as 2f and original frequency as f.......

Proceed in this way ….….….….….….….….….….….….…..

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