i have to go somewhere no time please help me
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a wooden peice opaque object
represent by a straight line
ray of light
rectilinear propagation of light,light travels in straight line
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1)opaque object
2)translucent object
3)Form of energy
4)light travels in straight lines
5)Shadow cast by heavenly bodies
6)Luminous body
7)A ray of light
8)Natural source of light
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