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Question
Compare the ionising powers of α, β and γ radiations.
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Solution
The ionising power of α-radiation is nearly 100 times that of β radiations and nearly 10,000 times that of γ-radiations.
RELATED QUESTIONS
In following Figure shows a mixed source R of alpha and beta particles in a thick lead walled container. The particles pass through a magnetic field in a direction perpendicular to the plane of paper inwards as shown by ×.
- Show in the diagram how the particles get affected.
- Name the law used in part (a).
[Hint: Alpha particles will deflect to the left while beta particles to the right]
Explain why alpha and beta particles are deflected in an electric or a magnetic field, but gamma rays are not deflected in such a field.
Arrange the α, β, and γ raditions in ascending order of their ionising powers.
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Arrange the α, β, and γ radiation in ascending order of their biological damage. Give reason.
A radioactive substance emits radiations ______.
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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.
Which of the following radiations suffer maximum deflection in a magnetic field?
Arrange the α, β and γ radiations in ascending order of their penetrating power.
