The lower the temperature of an object, the
A)lower the frequency of radiation it emits.
B)longer the wavelengths it radiates.
C)both of these
D)neither of these

Question

Quizplus · Accepted Answer

As per Wien's law, lower temperature corresponds to longer wavelengths of radiation which means that the wavelength of radiation increases as the temperature decreases. Also, as per Planck's law, lower temperature corresponds to a lower frequency of radiation because the total energy emitted by an object at a given temperature is proportional to the fourth power of the object's absolute temperature. Therefore, as the temperature decreases, the total energy emitted decreases, and so does the frequency of radiation. Hence, both the statements given in option C are true.

The Lower the Temperature of an Object, the