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CGP EDU Academic Team
Published on: September 12, 2026
Certain substance emits only the wavelengths $\lambda_{1}, \lambda_{2}, \lambda_{3}$ and $\lambda_{4}$ when it is at a high temperature. When this substance is at a colder temperature, it will absorb only the following wavelengths
Text Solution
Verified by ExpertsThe correct answer is:
D
A substance can absorb all those wavelengths on cooling which it can emit at high
temperature.
Hence, it will absorb $\lambda_1, \lambda_2, \lambda_3$ and $\lambda_4$ .
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