MHT CET 2026 Physics question
A black body is at temperature of 5780 K. The energy of radiation emitted by the body at wavelength 300 nm is U at wavelength 500 nm is U and that at 900 nm is U respectively. Wien's constant b = nmK. This shows that
Answer: (C)
Solution
By Wien's displacement law the wavelength of maximum emission is nm. The spectral energy distribution of a black body rises to a maximum at and falls on both sides of it. Hence the energy emitted at
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account