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A laser pen is pointed at a dark wall. A spot of light is seen at exactly where the pen is pointing. Which property of light does this show?

A laser pen is pointed at a dark wall. A spot of light is seen at exactly where the pen is pointing. Which property of light does this show?
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A laser pen is pointed at a dark wall. A spot of light is seen at exactly where the pen is pointing. Which property of light does this show?

User David Gardner
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1 Answer

6 votes

Answer:

Light travels in a straight line.

User Khafaga
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