हिंदी

Welders wear special glass goggles while working. Why? Explain.

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प्रश्न

Welders wear special glass goggles while working. Why? Explain.

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उत्तर

Welders wear special glass goggles while working so that they can protect their eyes from harmful electromagnetic radiation.

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2013-2014 (March) Delhi Set 3

वीडियो ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्न

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