The amount of heat absorbed by the body depends upon the nature of the body. A measure of heat radiation absorbed by the abody is called absorptive power.
Absorptive power of a body is defined at a given temperature and wavelength is defined as the ratio of the amount of heat energy absorbed to the amount of heat energy incident on it in a wavelength range.
Do you meant to say that Absorptive power is a dimensionless quantity?
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Deleteyes it is
ReplyDeleteFor a perfectly black body, absorptive power is maximum and unity. It has no units and dimensions. a < 1 (for any body)
yes,in case of ideal black body absorptive power becomes 1,it is unit & dimension less.
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