The rainbow is usually seen after heavy rainfall because after a rain shower, there are droplets of water in air, when sunlight passes through these water droplets, it splits into seven colours and forms rainbow.
Question
Why is rainbow usually seen after heavy rainfall?
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Boojho planned an activity to observe an object A through pipes as shown in figure below, so that he could see objects which he could not directly see.
(i) How many mirrors should he use to see the objects? (ii) Indicate the positions of the mirrors in the figure. (iii) What must be the angle with respect to the incident light at which he should place the mirrors? (iv) Indicate the direction of rays in the figure. (v) If any of the mirrors is removed, will he be able to see the objects?
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