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 Form 1 Physics heat transfer topical questions and answers

Two identical empty metal containers P and Q are placed over identical Bunsen burners and the burners lit. P is dull black while Q is shiny bright. After each container attains a temperature of #100^0C# the burners are turned off. Two identical test tubes containing water are suspended in each container
without touching the sides as shown in figure 3.
figheat10620201511.JPG
Explain why container Q may become hot faster than P

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