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

Options

A. the glass case of the bulb
B. the thin filament
C. the thick wires supporting the filament
D. gases inside glass case of the bulb

Explanation

**Step-by-Step Solution:**

1. **Understanding the Components of an Electric Bulb:**
An electric bulb consists of several parts including a glass case, a thin filament, and supporting wires. Each of these components plays a role in the functioning of the bulb.

2. **Identifying the Source of Light:**
The primary function of the electric bulb is to produce light when electricity passes through it. The light is not produced by the glass case or the supporting wires.

3. **Role of the Thin Filament:**
The thin filament is the key component responsible for light production in the bulb. When electric current flows through the thin filament, it heats up due to its resistance.

4. **Glowing of the Filament:**
As the filament heats up, it reaches a temperature where it starts to glow, emitting light. This phenomenon is known as incandescence.

5. **Conclusion:**
Therefore, the light produced in an electric bulb is due to the glowing of the thin filament.

**Final Answer:**
In an electric bulb, light is produced due to the glowing of the thin filament.

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