010. Describe an activity to show that light travels in a straight line
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Take a rubber tube, stretch it straight and look through it at the flame of the candle with one eye (keeping the other eye closed). We will find that when the rubber tube is straight, we can see the light of candle flame through it. ... From this observation we conclude that light travels in a straight line.
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Take a rubber tube, stretch it straight and look through it at the flame of the candle with one eye (keeping the other eye closed). We will find that when the rubber tube is straight, we can see the light of candle flame through it. ... From this observation we conclude that light travels in a straight line.
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