As you know, Light travels in a straight line. So why does a pencil look bent when we put it in a glass of water? Does light bend when we put pencil in water?
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Answer:
Its due to the refraction of light rays in the water
Explanation:
yeah so, as the light enters the water it refracts i.e. it moves towards the normal ( normal is an imaginative perpendicular line where the light ray touches the water) (light moves towards the normal from rarer to denser medium). Therefore it appears that the pencil is a bit bent .
U should cnsider the ray as the pencil here.
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