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Kaner Sharma from Modern Defence Sr. Sec School,sheoganj, asked a question
Subject: Science , asked on 7/2/13

 why the rainbow is in semi circle? why cant be a circle?

Nikita From St. Joseph's Convent Sec School, added an answer, on 7/2/13
83 helpful votes in Science

 it is a full circle, because the perfectly spherical water droplets in the air split the white sunlight into the spectrum which you see as a rainbow. The light comes in at an angle, and then reflects out at an angle. From your perspective on the ground, that angle exsists in a full 360 degree arc - a circle. You only see a semi-circle because either the earth gets in the way of seeing the rest, or because there isn 't sufficient water suspended in the atmosphere to see the whole thing.


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Utsav Asthana From St. Patrick's School, added an answer, on 17/2/13
1 helpful votes in Science

actually its a whole circle but we see a semicircle coz the water droplets are above us but if u sit an an aeroplane u can see the whole rainbow in the shape of a circle coz there the water droplets are present both above and below the plane

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Simpple Btt Complicated From Noowhwree, added an answer, on 7/2/13
14 helpful votes in Science

Why it cant be a square or any other polygon???

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