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seen Jun 28 '12 at 18:58

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30
awarded  Popular Question
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Jun
28
asked How do we know that earth is not perfect sphere?
Jun
28
awarded  Scholar
Jun
28
accepted Why do we think of light as a wave?
Jun
20
asked Do we see color with higher frequency first?
Jun
20
comment Why do we think of light as a wave?
@ColinFredericks: I know there are two types of electric charges in an atom. Like charges repel and opposite charges attract each other and this force between them is called electrostatic force. I understand Electric field as simply a field around a charge which attracts or repels another charge.
Jun
20
awarded  Student
Jun
19
asked Why do we think of light as a wave?