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  4. The earth radiates in the infra-red region of the spectrum. The spectrum is correctly given by

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Q. The earth radiates in the infra-red region of the spectrum. The spectrum is correctly given by

AIEEEAIEEE 2003Thermal Properties of Matter

Solution:

Wien's law states that when the temperature of a black body radiator increases, the overall radiated energy increases and the peak of the radiation curve moves to shorter wavelengths.