Explanation :
Light sows many phenomena. Two of them are as follows :
- Transmission of light : The property of light when it passes through an object is called transmission of light. From fig 1, it is clear that the light gets transmitted from the object.
- Absorption of light : In absorption, the light rays get completely taken in by the object. Also, the transmission of energy takes place by the light waves to the particles of matter (fig 2).
So, the correct option is (a) " Transmission is when light passes through an object and absorption is when some or all of the light is taken in or absorbed by the object" .
