In Wilson Cloud Chamber which of the following tracks represented β-particles?
Correct answer: B. B
- A. A
- B. B
- C. C
- D. None of these
Explanation
Beta-particles produced 'two or three absolutely straight thread-like lines' from the direction of an impure radium salt source. The tracks produced by beta-particles were less clear than those produced by alpha-particles. Less energetic particles would spiral in the earth's field.The charged particles which produce tracks in a cloud chamber are alpha and beta particles (from radioactive atoms), and protons and muons (from space). Alpha and beta particles come from radioactive materials in our environment so the OPTION B represents Beta particles in wilson cloud chambers.
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