Sir, I was reading my chemistry text book (XII) and came across a wording that in iodine, the light absorbed is of yellow color and emitted is violet. But doesn't it seems against the law of conservation of energy as yellow colour is of higher wavelength and hence has lower energy but the light emitted is violet which is of higher energy. Accordingly it means that though less energy is absorbed, higher energy is emitted.. Can you please tell me how? Thank you

Dear student,
The phonomenon of emission and absorption of any colour depends on the atom. The absorption spectrum consists of light that is absorbed by the atom at a particular temperature and the emission spectra consists of colour of light that is emitted at a particular temperature. Generally the emission and absorption take place at different temperatures. So, it is not correct in looking at the emission and absorption in the light of conservation of energy.
Regards
Sumit