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An engine is moving on a circular path of radius 200 m with a speed...

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An engine is moving on a circular path of radius 200 m with a speed of 35 m s While moving the engine blows a whistle of frequency 700 Hz Frequency observed by an observer standing stationary at the centre of circular path will be More than 700 Hz 40 O Less than 700 Hz Equal to 700 Hz O No sound is heard

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