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A. Radioactivity 
B. Pressure
C. Water flow
D. None of these

Submitted by: Farhan Sikandar Gondal

A Geiger counter (Geiger-Muller tube) is a device used for the detection and measurement of all types of radiation: alpha, beta and gamma radiation. Basically it consists of a pair of electrodes surrounded by a gas. The electrodes have a high voltage across them. The gas used is usually Helium or Argon.

Correct Answer: Radioactivity 

Last Updated: June 02, 2022