Quest) what is black hole________
Quest 2) Why sky is blue ______
Quest 3) How are rainbow made _______
Answers
Answer:
1. A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.
Answer:
1.A black hole is an area of space with a gravitational field so strong that nothing, not even light, can escape it. That's why black holes appear black. In some cases, black holes are former massive stars that have been crushed to an extreme density during supernova explosions.
2.Gases and particles in Earth's atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
3.A rainbow is a multicolored arc made by light striking water droplets. ... The most familiar type rainbow is produced when sunlight strikes raindrops in front of a viewer at a precise angle (42 degrees). Rainbows can also be viewed around fog, sea spray, or waterfalls.
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