Thermal Properties of Matter - Result Question 34
35. Wien’s law is concerned with
[2002]
(a) relation between emissivity and absorptivity of a radiating surface
(b) total radiation, emitted by a hot surface
(c) an expression for spectral distribution of energy of a radiation from any source
(d) a relation between the temperature of a black body and the wavelength at which there is maximum radiant energy per unit wavelength
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Answer:
Correct Answer: 35. (d)
Solution:
- (d) According to Wein’s displacement law, product of wavelength belonging to maximum intensityand temperature is constant i.e., $\lambda_m T=$ constant.
