A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole?
A. Increase
B. Decrease
C. Remain constant
D. Will increase first and then decrease
Answer: Option A
Related Questions on Heat and Thermodynamics
A. Zeroth Law of Thermodynamics
B. First Law of Thermodynamics
C. Second Law of Thermodynamics
D. Third Law of Thermodynamics
A black body can absorb radiations of
A. lower wavelengths only
B. intermediate wavelengths only
C. higher wavelengths only
D. all wavelengths

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