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Which of the following are conditions necessary for observing rainbow?

1. The Sun should be behind us
2. It should have rained and the sun should be present.
3. None of A and B
4. Both A and B

Correct answer: Both A and B

Solution

A rainbow is seen when sunlight enters raindrops and is refracted, reflected, and dispersed toward the observer. This requires both raindrops in the air and the Sun positioned behind the observer.

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