Which of the following does not leave any trace in a Wilson cloud chamber?
Correct answer: D. Gamma particles
- A. Beta particles
- B. Alpha particles
- C. Protons
- D. Gamma particles
Explanation
A Wilson cloud chamber is a radiation detecting chamber. It contains a supersaturated vaporized liquid that condenses around ions or charged particles like alpha particles, beta particles and protons, and is thus able to visualize the passage of ionizing radiations. Since it detects charged particles, it is not able to detect or trace uncharged radiations like gamma particles.
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About Radioactive Decay
Radioactive decay is the spontaneous transformation of unstable nuclei, described by decay constant, activity, half life and the exponential decay law. Work includes alpha, beta and gamma emissions, decay equations and remaining nuclei, with half life distinguished from the time required for complete decay.
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