State any two observations from every day life which shows that light travels in a straight line
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When light enters the room
pritimithaulia:
take a straw and point it towards a torch in a dark room. You can see the light of the torch. Now bend the straw and observe. You will find that now you cannot see the light through the straw. This proves that light travels in straight line.
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First example is torch and second one is laser and third one is sunlight
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