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Question

In an electric bulb, light is produced due to the glowing of

A

the glass case of the bulb.
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B

the thin filament.
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C

the thick wires supporting the filament.
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D

gases inside the glass case of the bulb.
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Solution

The correct option is B
the thin filament.
The thin filament inside the bulb is a metal strip, having a high melting point. When the electric current is passed through this wire, it becomes red hot due to the heat produced in the filament and produces light.

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