TS EAMCET · Physics · Waves and Sound
A boy standing on a platform observes the frequency of a train horn as it passes by. The change in the frequency noticed as the train approaches and recedes him with a velocity of 108 kmph is (speed of sound in air \(=330 \mathrm{~ms}^{-1}\) )
- A \(18.33 \%\)
- B \(16.67 \%\)
- C \(21.27 \%\)
- D \(15.23 \%\)
Answer & Solution
Correct Answer
(A) \(18.33 \%\)
Step-by-step Solution
Detailed explanation
Using Doppler's effect formula: 1) Approaching Train:…
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