Question

Q11. Why do meteors burn on entering the atmosphere?
Q12 Explain why a charged body loses its charge if we touch it with our hand?
Q13. Why does white light disperse when passed through a prism?​

Answer 1

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Why do meteors burn on entering the atmosphere?

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☞︎︎︎ When a meteoroid enters the Earth's upper atmosphere, it heats up due to friction from the air. The heat causes gases around the meteoroid to glow brightly, and a meteor appears.

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Explain why a charged body loses its charge if we touch it with our hand?

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☞︎︎︎ When we touch a charged body, it loses its charge, due to the process of earthing. Our body is a good conductor of electricity. It transfers the charges to the earth.

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Why does white light disperse when passed through a prism?

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☞︎︎︎ Since different colors of light travel at different speeds, the refractive index is different for each color. As a result, when white light passes through the refracting surface of the prism, its components bend into different angles, causing the single beam of light to separate.