Light travels in straight line give examples
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Take a straw and a candle... light the candle and look at it through one end of the straw ... you will observe that when u bend the straw u r unable to see the candle this means light travels in a straight line
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two experiments are used to demonstrate how light travel in straight line.in first ex- the presenter arrange three pieces of card , with holes in, in an aneven line. the light stops and cannot travel through all three cards . when u arrange cards in a straight line, the light can travel through.
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