Science, asked by latharacharla9, 5 months ago

To prove that light travels in a straight line the apparatus needed are​

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Answered by SUNNY90850
2

You can pass a knitting needle through the holes to confirm if they are in a straight line. Now place a burning candle in front of the board C and look through the pinhole in board A. The flame will be clearly visible. This shows that light travels in a straight line.

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