Class 11Physics2 Thermal Properties of Matter: Heat TransferRadiation (General, Kirchoff's law, Black body, Prevost's Theory)
MediumAt a high temperature,a body emits radiation of wavelengths $\lambda_1, \lambda_2, \lambda_3,$ and $\lambda_4$ only. At a lower temperature,which of the following wavelengths will it absorb?
- A$\lambda_1$
- B$\lambda_2$
- C$\lambda_1$ and $\lambda_2$
- D$\lambda_1, \lambda_2, \lambda_3,$ and $\lambda_4$
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