Define monochromatic emissive power of a body. Write the relation between emissive power and radiant emittance.

Define monochromatic emissive power of a body. Write the relation betw

1.	Define monochromatic emissive power of a body. Write the relation between emissive power and radiant emittance.
Answer» SOLUTION :The radiant energy emitted PER second by a unit surface area of the body per unit range of WAVELENGHT is defined as monochromatic emissive power. Radiant emittance, `e = int_(lambda =0) e_(lambda) d_(lambda) `where `e_(lambda)`is theemissive power .