Question

properties of ultraviolet radiations ​

Answer 1

Explanation:

properties of ultraviolet radiations :-❤❤❤

Ultraviolet (UV) designates a band of the electromagnetic spectrum with wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays. ... Suntan and sunburn are familiar effects of over-exposure of the skin to UV, along with higher risk of skin cancer.

Answer 2

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1⃣These radtions travellers in a straight line with a speed of 3*10^8 m/s in air or vacuum.

2⃣They are usually scattered by the dust particles present in the earth's atmosphere.

3⃣They obey the laws of reflection and refraction.

4⃣They strongly affect the photographic plate as they are chemically more active than the visible light.

5⃣They produce flouroscence on striking a zinc-sulpide screen.

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