Physics
Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? I.Diffusion II.Refraction III.Internal reflection

I and III
I and II
I, II and III
II and III

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

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

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