Answer:
1 , 4 and 5
Explanation:
Natural and artificial sources of light, luminous and non-luminous objects, incandescent & bioluminescent light sources, reflectors of light etc
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Answers & Comments
Answer:
1 , 4 and 5
Explanation:
Natural and artificial sources of light, luminous and non-luminous objects, incandescent & bioluminescent light sources, reflectors of light etc