Question

why always rainbow formed in a curved shape?​

Answer 1

Answer:

The rainbow is curved as it reflects the round shape of the sun. ... Rainbows are circular because raindrops are spherical. When light from the Sun enters a raindrop it is largely reflected back inside a cone with a half-angle of 42 degrees.

I hope it will help you

Answer 2

Answer:

Here Is Your Answer

Explanation:

In raindrops, sunlight bounces back, or reflects, most strongly at a certain angle - 42 degrees. As long as the angle is right, then the light will be reflected and you see a rainbow. ... So the reflection gives you the shape of the rainbow, while the refraction gives you the colours of the rainbow.

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