Q. Which one of the following noble gases is used in miner’s cap lamps?
A) Helium
B) Neon
C) Argon
D) Krypton
Explanation
(d)
Krypton is used in miner’s cap lamps.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.