Chapter 9, Problem 10RAT

A high-temperature source radiates relatively

(a) short wavelength.

(b) long wavelength.

(c) low frequencies of radiation.

(d) None of these.

To determine

The correct option for the statement "A high-temperature source radiates relatively".

Answer to Problem 10RAT

The correct option for the statement "A high-temperature source radiates relatively" is option (a).

Explanation of Solution

The thermal energy that comes from the sun to Earth travels in space before it heats the Earth. This energy has no kind of medium in space for propagation, and it travels through a vacuum. This type of heat transfer is termed as radiation, and the energy is known as radiant energy.

All the substances that have the temperature above absolute zero always emit radiant energy. And the frequency of the wave of radiant energy is directly proportional to the source's absolute temperature. Also, the high-frequency objects emit the wave of short wave length, so the objects with high-temperature radiate energy of short-wavelengths.

Conclusion:

Therefore, the correct option for the statement "A high-temperature source radiates relatively" is option (a).