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Q. Which among the given property of sound is affected by change in air temperature
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Q. Which conservation principle is applicable in the case of the motion of a rocket?
Q. The unit of noise pollution (level) is :
Q. Parabolic mirors are used in
Q. The operating principle of a hydraulic press is
Q. The earth-wire of a cable is attached to
Q. Winding a watch is actually the process of storing
Q. The GPS device in an automobile uses which communication channel?
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