Welders wear special goggles or face masks with glass windows to protect their eyes from electromagnetic radiations. Name the radiations and write the range of their frequency. [AI 2013]
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Explanation:
welders were special goggles or face masks with glass windows to protect their eyes from uv rays. Frequency range of uv rays is 7.5×1014 to 5×1017 hz (800Thz to 30Phz)..
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