Welders wear special goggles or face masks with glass windows to protect their eyes from electromagnetic radiation. Name the radiations an write their range of frequency.

Welders wear special goggles or face masks with glass windows to protect their eyes from Ultra Violet Rays (UV-rays).
Frequency range of UV- rays is 7.5×1014 to 5×1017 Hz (800 THz to 30 PHz).
 

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