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Sudeep and Karthideyan were roommates. Sudeepwasboilingwater in avessel forbathing purpose. KarthikeyansaidSudeep , you knowwhenyou touchthe middlepartofthe vesselcontainingwater you can feellessheat thanwhat youcan feelat the top. Sudeepwasshockedto hear.Karthikeyantook athermometerand keptit at the topsurfaceof water. The temepaturewas rising.Againheinsertedit deep into the vesselcontainingwater , now thetemperaturehas fallen downthan in the previouscondition.Whatis tehtruthbehind it ? (i) It is good to keepourhanddeep intothe vesselto checkthiswhilethe liquid is boiling ? , (ii)Whatare convectioncurrent ?

Answer» <html><body><p></p>Solution :The truthbehindthismagicis convectionprocess. It is a phenomenonof heattransfer in a fluid withthe actual movementof the particlesof the flud .i.e.,<a href="https://interviewquestions.tuteehub.com/tag/whena-3274932" style="font-weight:bold;" target="_blank" title="Click to know more about WHENA">WHENA</a> fluidis heatedthe hotpartexpandsandbecomeslessdense , so itrisesup andreplacesthe colderpartof fluid. Againthis fluidis heatedrisesup of replacesthe colderpartof thefluid. Thisprocessgoeson . <a href="https://interviewquestions.tuteehub.com/tag/thatis-1245000" style="font-weight:bold;" target="_blank" title="Click to know more about THATIS">THATIS</a> whywhenweboilwaterheatwillbe from <a href="https://interviewquestions.tuteehub.com/tag/top-1422115" style="font-weight:bold;" target="_blank" title="Click to know more about TOP">TOP</a> layer of the liquid to thebottomlayer.<br/> (i)No,it is notgoodtochecklike this.Asthe toplayerof fluid is not,ourhandsmustcrossthislayerfirstto moveitdeepintothe veseelcontainingwatter.so youmaygetburnsorswells.<br/> (<a href="https://interviewquestions.tuteehub.com/tag/ii-1036832" style="font-weight:bold;" target="_blank" title="Click to know more about II">II</a>) Convectioncurrentsare the constantcyclicalmotionof airwaterandothersubstanceto distributeheat . Asheatedairrises,forexampleit pullscoolerair intoitsplacewhereit can be heatedriseandpull in mostcoll air.Somegeologistsbelieveconvectioncurrentswithinthe Earth'smoltenrocks (insemi-liquid <a href="https://interviewquestions.tuteehub.com/tag/state-21805" style="font-weight:bold;" target="_blank" title="Click to know more about STATE">STATE</a>)are a contributingcause ofvolcanoeseqrthquakes andcontinentaldrift.</body></html>


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