Multiple choice question for engineering Set 1 1. At what temperature, the speed of sound in air will becomes double of its value at 27°C? a) 54°C b) 627°C c) 327°C d) 927°C AnswerAnswer: d [Reason:] As v∝√T v/2v=√((273+27)/T) T=1200K=927℃ 2. The speed of a wave in a medium is 760m/s. If 3600 waves are…
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