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Question: Answered & Verified by Expert
An engine is moving on a circular path of radius $200 \mathrm{~m}$ with speed of $15 \mathrm{~m} / \mathrm{s}$. What will be the frequency heard by an observer who is at rest at the centre of the circular path, when engine blows the whistle with frequency $250 \mathrm{~Hz}$?
PhysicsWaves and SoundMHT CETMHT CET 2020 (20 Oct Shift 2)
Options:
  • A Less than $250 \mathrm{~Hz}$
  • B Greater than $250 \mathrm{~Hz}$
  • C $250 \mathrm{~Hz}$
  • D Zero
Solution:
1693 Upvotes Verified Answer
The correct answer is: $250 \mathrm{~Hz}$
No Solution.

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