A siren placed at a railway platform is emitting sound of frequency 5 kHz. A passenger…
Physics · JEE Advanced · NTA Exams — Oscillations and Waves
A siren placed at a railway platform is emitting sound of frequency 5 kHz. A passenger sitting in a moving train A records a frequency of 5.5 kHz while the train approaches the siren. During his return journey in a different train B he records a frequency of 6.0 kHz while approaching the same siren. The ratio of the velocity of train B to that train A is
- 242/252
- 2
- 5/6
- 11/6 .
Answer
(A) 242/252
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