Which of the following acts as ionising gas in Geiger Muller (G.M.) counter?
A. Alcohol
B. Argon gas
C. Krypton
D. Hydrogen
Answer:B
Which of the following acts as ionising gas in Geiger Muller (G.M.) counter?
A. Alcohol B. Argon gas C. Krypton D. Hydrogen
Explanation: Argon gas acts as an ionising gas in G.M. counter. It is present in a gas type envelope along with the electrodes.