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प्रश्न
Which of the following metals is used in incandescent lamps?
विकल्प
Fe
Mo
Zr
W
MCQ
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उत्तर
W
Explanation:
Tungsten (W) is used in incandescent lamp filaments because it has the highest melting point among all metals (about 3422°C) and does not melt easily at high temperatures. It also has good electrical conductivity and can emit light when heated.
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