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01.A sound wave travels at a speed of 3329 m/s. If its wavelength is 1.5 cm, what is thefrequency of this wave? Will it be audible? 02. The frequency of sound produced by source A is twice to the frequency of sound produced by source B. Compare the wavelengths of both the sounds. 03.A train starts moving from rest and acquires a velocity of 72 km/h in 5 minutes. If the train moves at a constant acceleration, calculate the following- (i) Acceleration (ii) Distance travelled by the bus to acquire this velocity 04. An athlete covers one round of a circular track of 7 m. radius is 44 sec. How much distance will it cover in 1 minute?​

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