Which of the following statement is not correct : - Vidyadip

MCQ

Which of the following statement is not correct :

A
A good absorber is a good emitter.
B
Every object emits radiation at every temperature and absorbs.
C
The rate of cooling of an object is proportional to the temperature excess.
✓
The emission efficiency of an ideal black-body is the same for all wavelengths radiations.

✓

Answer

Correct option: D.

The emission efficiency of an ideal black-body is the same for all wavelengths radiations.

D

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