23 A train moving at a speed of 220 ms 1 towards a stationary object...
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23 A train moving at a speed of 220 ms 1 towards a stationary object emits a sound of frequency 1000 Hz Some of the sound reaching the object gets reflected back to the train as echo The frequency of the echo as detected by the driver of the train is Speed of sound in air is 330 ms AIPMT Mains 2012 1 3500 Hz 3 5000 Hz 2 4000 Hz 4 3000 Hz 3
23 A train moving at a speed of 220 ms 1 towards a stationary object emits a sound of frequency 1000 Hz Some of the sound reaching the object gets reflected back to the train as echo The frequency of the echo as detected by the driver of the train is Speed of sound in air is 330 ms AIPMT Mains 2012 1 3500 Hz 3 5000 Hz 2 4000 Hz 4 3000 Hz 3
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You can see the logs in the Dashboard.