Which one of the following noble gases is used in miners cap lamps?

Question

Which one of the following noble gases is used in miners cap lamps? (A) Helium (B) Neon (C) Argon (D) Krypton

Tardigrade Admin · Accepted Answer

Krypton is the inert gas which is used in miners cap lamps.

Q. Which one of the following noble gases is used in miners cap lamps?