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These resources are designed to help you familiarize yourself with the exam format, identify key topics, and practice effectively. Whether you're preparing for the May/June or GCE sessions, our curated materials provide both objective and theory questions to enhance your study sessions.","tags","waec nigeria west africa examination council","version","vip","location",{"_390":391,"_392":393},"type","Point","coordinates",[394,395],9.082,10.3671,"ng","priority",10,"createdOn",1755991949910,"updatedOn","questionsCount",27220,"courseCount",23,"examKey","questionData",{"_369":409,"_410":411,"_412":413,"_278":415,"_416":417,"_263":370,"_418":419,"_420":421,"_110":427},"NM6kFKsQWrZ2R7Ep8YztUXT8bqnqVF","q","A 90W immersion heater is used to supply energy for 5 minutes. The energy supplied is used to completely melt 160g of a solid at its melting point. Calculate the specific latent heat of the solid.","ans",[414],3,"1991","course","physics","exp","pt = ml 80
\n
\n90 x 5 x 60 = 160 x L
\n
\nL = \\(\\frac{27000}{160}\\)
\n
\n= 168.75Jg^-1
\n
\n= 168.75","opts",[422,423,424,425,426],"2.81jg^-1","6.25Jg^-1","8.89Jg^-1","168.75Jg^-1","5333.33Jg^-1",46,"46","initComment","initReply","actionData","errors"]

WAEC - Physics (1991 - No. 46)

Explanation

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