Question

The gas used in the fluorescent tubes is_______. *

1 point

Argon

Helium

Neon

Krypton

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Answer 1

Answer:

Argon

Explanation:

Hope this answer helps you!!!

Answer 2

Answer:

The gas used in the fluorescent tubes is - Argon.

Explanation:

• A fluorescent lamp tube is filled with a gas containing low pressure mercury vapour and noble gases at a total pressure of about 0.3% of the atmospheric pressure.
• Fluorescent tubes are mostly filled with inert gases like Argon because the heat from the tungsten filament generates light and argon helps to prevent the filament from decaying.
• Argon helps to stop the oxygen in the tubes from corroding the hot tungsten filament.
• The presence of argon in the tubes prevents the evaporation of the tungsten filament which results in increasing the tube's life.
• Argon has low thermal conductivity.
• Argon is the cheapest alternative when nitrogen is not sufficiently inert.

Hence, Argon is used in the fluorescent tubes.