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A sound wave hos frequency 2 ikhz and wweiength 40 cm ina sven medium.Calculate the tme taken by 1t to travel 1.6 kmin a given medium. |
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Answer» Given: Frequency = n=2kHz= 2x1000 Hz Wavelength=lambda= 40cm=40/100=0.4m Speed of sound: V= frequency * wavelength =2×1000×0.4 =800m/s Speed = Distance/ time Distance= 1.6 km= 1.6x1000 m Time= distance/ speed = 1.6x1000/ 800 =16×100/800 =2sec Therefore time required to travel 1.6km is 2 sec. |
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