Ious class that light travels in a straight line and that it can LIU speed is


Ious class that light travels in a straight line and that it can LIU
speed is the greatest in vacuum, through which it travels at ttmis. Ils speed in other mediums (say, glass or water) is less thnout the speed of light is that nothing in the universe can traveu will understand the significance of this later. Forppear to be of a particular colou​


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