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Question

A candle can not be seen through a bent pipe. This shows that
  1. Light reflects when incident on a surface
  2. Light does not reflect when incident on a surface
  3. Light does not travel in a straight line
  4. Light travels in a straight line

A
Light does not reflect when incident on a surface
B
Light travels in a straight line
C
Light reflects when incident on a surface
D
Light does not travel in a straight line
Solution
Verified by Toppr

Since light travels through a straight line, a candle cannot be seen through a bent pipe.

Answer-(D)

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