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Sahay Sir > Question Answers > MTG NEET Physics > Part 1 > Chapter 14 - Thermometry, Expansion and KTG > Two bodies A and B have emissivities 0.3 and 0.6 respectively have maximum spectral emissive powers at wavelength 4000 Å and 2000 Å respectively. The ratio of their emissive powers at A and B at these temperatures is:

Two bodies A and B have emissivities 0.3 and 0.6 respectively have maximum spectral emissive powers at wavelength 4000 Å and 2000 Å respectively. The ratio of their emissive powers at A and B at these temperatures is:

A difference of temperature of 25^∘C is equivalent to a difference of.