[hamza (OP)]

ok.. now plz someone tell me why we always get to see an arced rainbow .. although i've heard its circular and all that.. someone explain it in comprehensible terms plz...

[stereologist]

The arc you see is a part of a circle. Notice that as you move, the rainbow appears to move. If you go up in elevation you see more of the circle. Go up high enough and you see a complete circle. You can create your own rainbow at noon and see a complete circle. When the sun is high overhead spray a mist around you. You should be able to create a "hula hoop" rainbow that goes around your body. This can be seen naturally in when standing in heavy mist blowing out from the base of a waterfall.

[rosy]

Does this help?

http://www.thenakedscientists.com/HTML/content/kitchenscience/exp/diy-rainbow/

[RD]

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