MHT CET 2025 Physics question
A person observe two moving trains. First reaching the station and another leaves the station with equal speed of 30 m/s. If both trains emit sounds of frequency 300 Hz, difference of frequencies heard by the person will be (speed of sound in air = 330 m/s)
Answer: (C)
Solution
The observer is at rest. For the train approaching (source moving towards observer): Hz. For the train leaving (source moving away): $ = f = 300 ×
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