Thus the emissive or radiating power of a surface is defined as the quantity of heat radiated per second by the surface divided by the amount radiated per second by a perfectly black surface under the same conditions.
Since the absorbing power of tourmaline is different for the two components, the emissive power should also be different, and that component which was most absorbed should be radiated most strongly.
Between these two extreme positions, how does the diminution of the emissive power operate?
The same fraction, by the principle of equality of emissive and absorptive powers, will measure the proportion absorbed of incident radiation R'.
The fraction E measures the emissive power of the body for that particular wave-length, and cannot be greater than unity.
There is reason for believing that special receptive and emissive centres exist for the musical sense exactly analogous to those for speech.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "emissive" in a variety of sentences. We hope that you will now be able to make sentences using this word.
