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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.
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]
Is it possible to deflect γ - radiations in a way similar to α and β -particles, using the electric or magnetic field? Give reasons.
State following four properties each of α, β and γ radiations:
- Nature,
- Charge,
- Mass and
- Effect of electric field.
What is the composition of α, β and γ radiations?
A radioactive substance emits radiations ______.
Compare the penetrating powers of α, β and γ-radiations.
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 nuclear radiation will travel undeviated in an electric field?
Which of the following radiations suffer maximum deflection in a magnetic field?
