Question:medium
A person observes two moving trains. First reaching the station and another leaves the station with equal speed of \(30 \text{ m/s}\). If both trains emit sounds of frequency \(300 \text{ Hz}\), difference of frequencies heard by the person will be (speed of sound in air \(330 \text{ m/s}\))
A person observes two moving trains. First reaching the station and another leaves the station with equal speed of \(30 \text{ m/s}\). If both trains emit sounds of frequency \(300 \text{ Hz}\), difference of frequencies heard by the person will be (speed of sound in air \(330 \text{ m/s}\))
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Frequency increases when source approaches and decreases when source recedes.
Updated On: Apr 30, 2026
- \(80 \text{ Hz}\)
- \(75 \text{ Hz}\)
- \(55 \text{ Hz}\)
- \(45 \text{ Hz}\)
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The Correct Option is C
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