A) wavelength corresponding to maximum energy and absolute temperature
B) radiated energy and wavelength
C) emissive power and temperature
D) colour of light and temperature
Correct Answer: A
Solution :
| According to Wien's displacement law, the quantity of energy radiated out by a body is not uniformly distributed over all the wavelengths emitted by it. It is maximum for a particular wavelength \[(\lambda ),\] which is at different temperatures. As the temperature is increased, die value of the wavelength which carries maximum energy is decreased. |
| The statement of this law is as follows: |
| The wavelength corresponding to maximum energy is inversely proportional to the absolute temperature of the body. |
| i.e., \[{{\lambda }_{m}}\propto \,\,\frac{1}{T}\] |
| or \[{{\lambda }_{m}}T=\text{cosntant}\] |
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