Wave OpticsHard
Question
A man is watching two trains, one leaving and the other coming in with equal speeds of 4 m/s. If they sound their whistles, each of frequency 240 Hz, the number of beats heard by the man will be equal to : (Velocity of sound in air = 320 ms-1)
Options
A.6
B.3
C.0
D.12
= 6 HzMore Wave Optics Questions
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