Questions
A sphere, a cube and a thin circular plate, all made of the same material and having the same mass are initially heated to a temperature of C. Which one of these will cool first?
detailed solution
Correct option is A
Rate of cooling ∆θt = A∈σ(T4-T04)mc ⇒ ∆θt directly proportional to ASince area of plate is largest so it will cool fastest.Talk to our academic expert!
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