MCQ 11 MarkThe speed of sound in air at $0 ^\circ C$ is approximatelyA$344\ m/s$.B$260\ m/s.$✓$330\ m/s.$D$390\ m/s.$AnswerCorrect option: C. $330\ m/s.$View full question & answer→
MCQ 21 MarkWhich of the following concepts is used in $\text{SONAR}$ to find the depth of oceans ?Amusical sound✓echoesClaserDnoiseAnswerCorrect option: B. echoesView full question & answer→
MCQ 31 MarkWhich of the following is a good sound absorber ?AglassBwater✓thermocolDvacuumAnswerCorrect option: C. thermocolView full question & answer→
MCQ 41 MarkSound cannot propagate throughAsolids.Bliquids,Cgases.✓vacuum.AnswerCorrect option: D. vacuum.View full question & answer→
MCQ 51 MarkIf five waves are produced in one second, then the time period of the wave is✓$0.2 s$B$0.25 s$C$0.1 s$D$0.05 s$AnswerCorrect option: A. $0.2 s$View full question & answer→
MCQ 61 MarkWhich of the following is transferred by a wave from one place to another?AmassBparticles✓energyDmatterAnswerCorrect option: C. energyView full question & answer→
MCQ 71 MarkSound is produced by alan✓vibrating object.Bobject at rest.Crotating object.Drolling objectAnswerCorrect option: A. vibrating object.View full question & answer→
MCQ 81 MarkSound is a form of energy which produces a sensation ofAtouch✓hearingCsightDfeelingsAnswerCorrect option: B. hearingView full question & answer→