Q. The plots of intensity vs wavelength for two black bodies at temperature and such that respectively are as shown. Let the energy radiated per second by body and body be and respectively. Pick up the correct statement(s).

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A

B

may be equal to times of

C

The area under curve and area under curve will be same

D

Area under curve is larger than area under curve

Solution:

As in the situation surface area of the bodies is not specified we cannot comment on total energy radiated by the bodies which is given by the are a under the spectral intensity curves. If the areas of the two bodies are equal then option (B) can be correct

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