Bright light is found to emit from photographer's flashgun. This brigh

Bright light is found to emit from photographer’s flashgun. This brightness is due to the presence of which one of the following noble gases?

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Argon

Xenon

Neon

Helium

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This question was previously asked in

UPSC CDS-1 – 2018

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Xenon is the noble gas most commonly used in photographic flashguns and strobe lights. When an electric current is discharged through xenon gas, it produces a brief, intense flash of broadband white light, which is ideal for photography.

Xenon is used in flash lamps due to its ability to produce bright, white light upon electrical discharge.

Other noble gases like Neon are known for their use in signs producing colored light, Argon is used in fluorescent lamps and some discharge lamps, and Helium is used in discharge lamps for specific spectral lines, but none are standard for photographic flashguns like Xenon.

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