Tungsten is used in incandescent bulbs because of its _________.

High melting point

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Good lustre

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High boiling point

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High malleability.

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Solution

The correct option is A
High melting point

An incandescent light bulb produces light when a wire filament, heated to a very high temperature by an electric current passing through it, glows.

Tungsten has a very high melting point ( MP = 3422 C) and is thus very useful for the purpose.

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Tungsten is used almost exclusively for filament of incandescent lamps because tungsten has a high melting point ( $3380^{\circ}$ C) and becomes incandescent (i.e., emits light at a high temperature) at 2400 K.

State true or false.
Tungsten is used almost exclusively for filament of incandescent lamps because tungsten has a high melting point ( $3380^{\circ}$ C) and becomes incandescent (i.e., emits light at a high temperature) at $2400 K$ .

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Tungsten is used in incandescent bulbs because of its _________.

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Tungsten is used in incandescent bulbs because of its _________.

The correct option is A High melting point An incandescent light bulb produces light when a wire filament, heated to a very high temperature by an electric current passing through it, glows. Tungsten has a very high melting point ( MP = 3422 C) and is thus very useful for the purpose.

The correct option is A
High melting point

An incandescent light bulb produces light when a wire filament, heated to a very high temperature by an electric current passing through it, glows.

Tungsten has a very high melting point ( MP = 3422 C) and is thus very useful for the purpose.