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Which gas is sometimes used in filament lamps?

  • Argon gas is sometimes used in filament lamps.
  • Argon is often used in halogen lamps, which are a type of incandescent lamp.
  • Halogen lamps are similar to traditional incandescent lamps, but they use a halogen gas (such as iodine or bromine) to help regenerate the filament and increase its lifespan.
  • In some cases, argon gas is also added to the halogen gas mixture to improve the efficiency and lifespan of the lamp.
  • Argon is a noble gas that is chemically inert and does not react with the filament or other components of the lamp.
  • Its use in filament lamps helps to prevent the filament from reacting with oxygen and other gases in the atmosphere, which can cause it to degrade and burn out more quickly.