MCQ 11 MarkA thermos flask minimizes the flow of heat due toAconvectionBradiationCconduction✓all of theseAnswerCorrect option: D. all of theseView full question & answer→
MCQ 21 MarkThe mode of transfer of heat that requires no material medium isAconvection✓radiationCconductionDsublimationAnswerCorrect option: B. radiationView full question & answer→
MCQ 31 MarkHeat transfer in solids takes place throughAconvectionBradiation✓conductionDvaporizationAnswerCorrect option: C. conductionView full question & answer→
MCQ 41 MarkAn example of a substance that sublimes isAfluorineBbromineCchlorine✓iodineAnswerCorrect option: D. iodineView full question & answer→
MCQ 51 MarkThe temperature at which a substance in its vapour state changes into its liquid state is calledAsublimation pointBvaporization pointCfreezing point✓condensation pointAnswerCorrect option: D. condensation pointView full question & answer→
MCQ 61 MarkThe SI unit of temperature is $–$Adegree CelsiusBdegree FahrenheitCcalorie✓kelvinAnswerCorrect option: D. kelvinView full question & answer→
MCQ 71 MarkWhich of the following substances is inflammable?AasbestosBbrickCwater✓$\text{LPG}$AnswerCorrect option: D. $\text{LPG}$View full question & answer→