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Question
A beam of α, β and γ rays is travelling through a certain region in space.
- Arrange them in ascending order of ionising power.
- Which of the above will pass undeviated if subjected to an electric field?
- With respect to your answer to part (b) above, what will be the change in the nucleus of an atom after such a ray is emitted.
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Solution
- γ < β < α
- γ rays pass undeviated if subjected to an electric field.
- The nucleus of the atom has no change in the mass number and atomic number during γ emission. So, the γ rays take no mass and no electrical charge from the nucleus.
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