Question
Download Solution PDFWhich of the following lamps is NOT a discharge lamp?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFTypes of Lamps:
- Discharge lamps produce light by passing an electric discharge through an ionized gas. Examples of discharge lamps include mercury vapour lamps, neon lamps, and sodium vapour lamps. These lamps require a ballast to regulate the current through the gas and maintain the proper operating conditions.
- In contrast, incandescent lamps produce light by heating a filament until it glows. They do not rely on ionized gases and electric discharges to generate light.
Explanation of Options:
1. Mercury vapour Lamp: - This is a discharge lamp that uses mercury vapour to produce light.
2. Neon lamp: - This is a discharge lamp that uses neon gas to produce light.
3. Sodium vapour lamp: - This is a discharge lamp that uses sodium vapour to produce light.
4. Incandescent lamp: - This is NOT a discharge lamp. It produces light by heating a tungsten filament until it glows.
Conclusion:
The lamp that is NOT a discharge lamp is:
4) Incandescent lamp
Last updated on May 29, 2025
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