The alloy which is used for making the filament of bulbs is :

Lead

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Copper

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Tin

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Tungsten

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Solution

The correct option is D Tungsten
Pure tungsten has some amazing properties including the highest Melting Point (3695 K), lowest vapor pressure , and greatest tensile strength out of all the metals. because of these properties it is the most commonly used material for light bulb filaments.

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