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______ is the metal used for making the filament of a light bulb.
ATungsten
BCopper
CNichrome
DNickel
Answer & Solution
Correct answer: A. Tungsten
1. A bulb filament must withstand very high temperatures without melting.
2. Tungsten has an extremely high melting point and glows on heating.
3. Hence tungsten is used for the filament.
_Source: RRB Group D CEN-02/2018 PYQ, Q.90._