Transcription of LIGHT - ncert.nic.in
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LIGHT - ncert.nic.in
LIGHTLIGHTThe world is largely known throughthe senses. The sense of sightis one of the most importantsenses. Through it we see mountains,rivers, trees, plants, chairs, people andso many other things around us. We alsosee clouds, rainbows and birds flyingin the sky. At night we see the moonand the stars. You are able to see thewords and sentences printed on thispage. How is seeing made possible? What makes ThingsVisibleHave you ever thought how we seevarious objects? You may say that eyessee the objects. But, can you see anobject in the dark?
A ray of light is an idealisation. In reality, we have a narrow beam of light which is made up of several rays. For simplicity, we use the term ray for a narrow beam of light. Draw lines showing the position of the plane mirror, the incident ray and the reflected ray on the paper with the help of your friends. Remove the mirror and the comb.
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