Waves - Result Question 71
73. A speeding motorcyclist sees trafic jam ahead of him. He slows down to . He finds that traffic has eased and a car moving ahead of him at hour is honking at a frequency of . If the speeds of sound is , the frequency of the honk as heard by him will be :
[2014]
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 73. (c)
Solution:
- (c) According to Doppler’s effect Apparent frequency,