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Why is a mirror an example of a poor blackbody radiator?
A.
It reflects most electromagnetic radiation instead of absorbing it.
B.
It gives off a range of wavelengths of electromagnetic radiation that depends on its temperature.
C.
It absorbs and gives off a range of wavelengths of electromagnetic radiation.
D.
It gives off only one wavelength of electromagnetic radiation.

Sagot :

Answer:

A

Explanation:

Detailed balance, i.e. 2nd law of thermodynamics, requires a relationship between absorbing incoming radiation and turning it into heat, versus emitting thermal radiation. A perfect mirror at rest does not absorb any incoming radiation, therefore it is a "whitebody", not a blackbody, and emits no thermal radiation.

Answer:

A.  it reflects most electromagnetic radiation instead of absorbing it.

Explanation:

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