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[" 45.A source of sound and a listener b...

[" 45.A source of sound and a listener both are "],[" moving in the same direction,the source "],[" following the listener.If the respective "],[" velocities of sound,source and listener are v,"],[v_(s)" and "v_(l)," then the ratio of the actual frequency "],[" of the source and the apparent frequency as "],[" received by the listener is "],[[" veres "," (A) "(v-v_(1))/(v-v)," (B) "(v-v_(s))/(v)]]

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