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प्रश्न
State the speed of each of α, β and γ radiations.
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उत्तर
The speed of α radiation is nearly 107 ms-1.
The speed of β radiation is about 90% of the speed of light, or 2.7 × 108 ms-1.
The speed of γ radiation is 3 × 108 ms-1 in a vacuum.
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संबंधित प्रश्न
A radioactive source emits three types of radiations.
Name the radiations which are deflected by the electric field.
Is it possible to deflect γ - radiations in a way similar to α and β -particles, using the electric or magnetic field? Give reasons.
Arrange the α, β, and γ raditions in ascending order of their ionising powers.
What is the composition of α, β and γ radiations?
Arrange the α, β, and γ radiation in ascending order of their biological damage. Give reason.
Compare the penetrating powers of α, β and γ-radiations.
What are α-and β-radiations?
The figure shows a radioactive source S placed in a thick-walled lead container. The radiations given off pass through a magnetic field acting in direction perpendicular to the plane of paper inwards as shown by X. Copy the diagram and show the path of radiations. Explain why the source is kept in a thick-walled lead container.
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?
