1.Light Travels through medium In the form of Extremely small
particles called as corpusclesThis are emitted by a source of
light in all possible direction of a medium
2.The Corpuscules are perfectly elastic,
rigid and weighteless in nature
3.In a given mediu, the corpucles travel with constant
velocity along a straight line path.They travel with
different velociies in different media.
4.The Corpuscle can enter our eye and strike the retina.
Hence we get the sensation of light.
5.Different Colours of light are due to the different sizes
of corpuscles.