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CGP EDU Academic Team
Published on: August 14, 2026
A train S1, moving with a uniform velocity of 108 km/h, approaches another train S2 standing on a platform. An observer O moves with a uniform 800 m velocity of 36 km/h towards S2, as shown in figure.
Both the trains are blowing whistles of same frequency 120 Hz. When O is 600 m away from S2 and distance between SI and S2 is 800 m, the 600m number of beats heard by O is_____________.
[Speed of the sound = 330 m/s]
Text Solution
Verified by ExpertsThe correct answer is:
8.13
(8.13)
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