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Welders wear special glass googles while …

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Welders wear special glass googles while working. Why?

    • Posted by Gauri Khandelwal 6 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Yogita Ingle 6 years, 10 months ago

    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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