Physics
Rainbows are produced when sunlight :

Incident on raindrops hanging in the atmosphere is dispresed after suffering reflection.
Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction and internal reflection.
None of the given statements is correct.
Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction

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Physics
We always see the same face of the moon, because

It is smaller than the earth
It revolves on its axis in adirection opposite to that ofthe earth
It rotates at the same speed as the earth around the sun
It takes equal time for revolution around the earth and rotation on its own axis

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