Answers

2016-02-28T20:20:59+05:30
1)ray of light is a narrw beam of light which moves in a particular direction.
2)it is a directional projection of enrgy radiatin frm the light source.
3)It is a beam of light which r parallel 2 each other.
4)the light rays which meet at a cerain point.
5)rays which r reflctd back.
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