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Physical Properties of Metals

Tungsten is u...

Question

Tungsten is used in incandescent bulbs because of its _________.

A

High melting point

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B

Good lustre

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C

High boiling point

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D

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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