When radiant energy that has been emitted by one object strikes another object, parts of that energy are transmitted and parts are reflected or absorbed by the second object.  If the total energy that is received by the second object represents unit, then: 

If an object is transparent, the energy is transmitted through it as follows:


If an object is mirror-like, the fraction of reflectance will be very high as shown below:


Other objects that are low in the fractions of energy that are transmitted or reflected absorb more energy: