A welder wears special glasses to protect his eyes mostly from the harmful effects of
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UV rays produced while welding
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A welder wears special glasses to protect his eyes mostly from the harmful effects of the ultraviolet rays produced during welding.
- Welding is the process of joining two substances (usually metals) by heating them enough to melt them and then allowing them to solidify.
- Ultraviolet rays are electromagnetic waves that have wavelength less than 400nm ( that is less than the wavelength of violet light).
- The special glasses of welders absorbs these ultraviolet rays and protect the eyes of welders from the harmful effects of ultraviolet rays.
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