MHT CET202617 April 2026Evening ShiftPhysicsThermal Properties of MatterActual
A black body emits radiation of maximum intensity of wavelength ' ' at temperature 'T' K. Its corresponding wavelength at temperature (2.5T) K will be
Options
- A2 3
- B2 5
- C4 5
- D16 81
Correct answer
B. 2 5
Step-by-step solution
According to Wien's displacement law, the product of the wavelength corresponding to maximum intensity of emission and the absolute temperature of the black body is a constant. _ m T = constant ₁ T₁ = ₂ T₂ Given ₁ = , T₁ = T , and T₂ = 2.5 T = 5 2 T . T = ₂ ( 5 2 T ) ₂ = 2 5