Question
Download Solution PDFGases used to fill inside a filament lamp:
Answer (Detailed Solution Below)
Option 1 : Argon, Nitrogen
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ST 1: B.Ed. Common Entrance (Teaching Aptitude)
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Detailed Solution
Download Solution PDFConcept:
- Electric bulb: It is an electric device that converts electric energy into heat and light energy.
- it is generally made of glass with inert gases filled in it (Nitrogen and argon).
- The filament is made of tungsten which has a very high melting point.
Explanation:
- The closed glass chamber of the electric bulb contains an inactive (inert) gas, Argon.
- The glass chamber can’t be filled with air as the presence of oxygen will cause the filament to burn, i.e. react with oxygen.
- The glass chamber can’t be made vacuum. As in vacuum conditions, the filament will evaporate because of very high temperature, making the bulb unusable.
- The inert gas within the bulb will maintain a particular pressure, preventing the filament from evaporating.
- Nitrogen is also used like Argon.
So, Gases used to fill inside a filament lamp Argon, Nitrogen.
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