Question

what are arora rays??explain with figures ​

Answer 1

Explanation:

UV Rays lie in the wavelength range from around 10 nm to around 400 nm and have a frequency between the ranges 800 THz to 30 PHz. UV radiation is harmful as continuous exposure to these will result in skin and eye diseases. It also results in the ageing of the skin. On the other hand, it is the best source of natural Vitamin D, which is essential for human growth. UV rays have a shorter wavelength range than visible light and therefore cannot be seen by human beings. There are some insects like bumblebees which actually can see ultraviolet rays.

UV Rays lie in the wavelength range from around 10 nm to around 400 nm and have a frequency between the ranges 800 THz to 30 PHz. UV radiation is harmful as continuous exposure to these will result in skin and eye diseases. It also results in the ageing of the skin. On the other hand, it is the best source of natural Vitamin D, which is essential for human growth. UV rays have a shorter wavelength range than visible light and therefore cannot be seen by human beings. There are some insects like bumblebees which actually can see ultraviolet rays.Although the earth is open to a large amount of UV ray exposure from the sun, most of it is absorbed by the ozone layer in the atmosphere. Black lights, mercury lamps and tanning lights (in tanning salons) are different sources of ultraviolet rays.

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Answer 2

Answer:

The Aurora is an incredible light show caused by collisions between electrically charged particles released from the sun that enter the earth's atmosphere and collide with gases such as oxygen and nitrogen. The lights are seen around the magnetic poles of the northern and southern hemispheres.

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