Question

The good absorbers of heat are

• A. Poor emitters
• B. Non-emitters
• C. Good-emitters
• D. Highly polished

Answer 1

The correct option is C

Good-emitters

Kirchhoff's Radiation Law:

Kirchhoff's law states that if a body absorbs a given wavelength of radiation, it must release the same wavelength of radiation.

The explanation for the Correct answer:

Option C: Good-emitters

1. According to Kirchhoff's radiation law, good heat absorbers are also good heat emitters.
2. Hence, option C is correct.

The explanation for incorrect answer(s):

Option A: Poor emitters

1. Poor emitters do not absorb heat well.
2. Hence, option A is not correct.

Option B: Non-emitters

1. Heat is not well absorbed by non-emitters.
2. Hence, option B is not correct.

Option D: Highly polished

1. Highly polished surfaces are inefficient heat emitters but poor heat absorbers.
2. Hence, option D is not correct.

Thus, option C is the correct answer.