A student noticed a rainbow appearing in the sky. If he walked towards it, what will happen to the apparent height of the rainbow above the ground?

It increases

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It decreases

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It remains the same

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It may increase or decrease

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Solution

The correct option is B It remains the same
The rainbow in the sky is formed as a result of total internal reflection of the rays of light by the water droplets present in the Earth's atmosphere. Thus, it has got nothing to do with the distance of the observer from the rainbow. Thus, the height of the rainbow stays the same with the movement of the observer.

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