Question

Wien's displacement law gives the relationship between

• A. the wavelength of radiation at which total emissive power is maximum and the temperature
• B. the wavelength of radiation at which total emissive power is minimum and the temperature
• C. the wavelength of radiation at which total emissive power does not change and the temperature
• D. none of the above

Answer 1

The correct option is A the wavelength of radiation at which total emissive power is maximum and the temperature

According to wein's law, the wavelength, ${\lambda }_{max}$ for max emissive power from a black body is function of temperature.

${\lambda }_{max}\left(inmm\right)=\frac{2900}{T\left(inK\right)}$

Wein's displacement law gives the relationship between the wavelength of radiation at which total emissive power is max and the temperature.