The material which is used as a filament for bulb has high ____________ .

Boiling point

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Melting point

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freezing point

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pressure

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Solution

The correct option is B Melting point
The melting point of filament of a bulb is very high because the bulb begins to glow only when the filament is heated to a high temperature,and it becomes incandescent (bright) without melting.This happens only when the material of the filament has a high melting point.Hence, the material used in the filament of an electric bulb must have a high melting point. For example Tungsten

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