Consider the following statements.(A) sphere, a cube and a thin circular plate made of same material and of same mass are initially heated to 200° C, the plate will cool at fastest rate.(B) Rate of cooling =eAσms(T4-T04)∞ surface areaSelect the correct option.(a) (A) is false but (B) is true.(b) Both (A) and (B) are true.(c) (A) is true but (B) is false.(d) Both (A) and (B) are false.
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a
Both (A) and (B) are true.
b
(A) is true but (B) is false.
c
(A) is false but (B) is true.
d
Both (A) and (B) are false.
answer is A.
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Detailed Solution
BOTH A and B are TRUE. B is the correct explanation of A
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Consider the following statements.(A) sphere, a cube and a thin circular plate made of same material and of same mass are initially heated to 200° C, the plate will cool at fastest rate.(B) Rate of cooling =eAσms(T4-T04)∞ surface areaSelect the correct option.(a) (A) is false but (B) is true.(b) Both (A) and (B) are true.(c) (A) is true but (B) is false.(d) Both (A) and (B) are false.