MCQ
Select the incorrect statement
  • A
    A body radiates at all temperatures except $0 \,K$
  • B
    A good reflector is a bad radiator
  • C
    A colder body can radiate heat to the hotter surroundings
  • A body does not radiate when its temperature is below $0^{\circ} C$

Answer

Correct option: D.
A body does not radiate when its temperature is below $0^{\circ} C$
d
(d)

$0^{\circ} C$ is $273 \,K$ so a body will radiate.

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