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[" 15.A whistling train approaches a jun...

[" 15.A whistling train approaches a junction.An "],[" observer standing at junction observers the "],[" frequency to be "2.2KHz" and "1.8KHz" of the "],[" approaching and the receding train.Find the "],[" speed of the train (speed sound "=300m/s).],[[" (1) "30m/s," (2) "15m/s],[" (3) "300m/s," (4) "150m/s],[" 16.In the figure shown,the two projectiles are fired "]]

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A whistling train approaches a junction. An observer standing at juction observes the frequency to be 2.2 KHz and 1.8 KHz of the approaching and the receding train respectively. Find the speed of the train (speed of sound 300m//s )

A whistling train approaches a junction. An observer standing at juction obsrever the frequency to be 2.2 KHz and 1.8 KHz of the approaching and the receding train respectively. Find the speed of the train (speed of sound 300m//s )

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