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प्रश्न
A radioactive substance emits radiations ______.
पर्याय
α , β and γ simultaneously
in the order α , β and γ one by one
X-ray and Y-ray
α or β
उत्तर
A radioactive substance emits radiations α or β.
Explanation:
In a single radioactive decay, α and β articles are never emitted simultaneously. There will be either an α- emission or a β - emission, which may be accompanied by γ emission.
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संबंधित प्रश्न
A radioactive source emits three types of radiations.
Name the three radiations.
A radioactive source emits three types of radiations.
Name the radiations which are deflected by the electric field.
The diagram in figure shows a radioactive source S placed in a thick lead walled container. The radiations given out are allowed to pass through a magnetic field. The magnetic field (shown as ×) acts perpendicular to the plane of paper inwards. Arrows shows the paths of the radiation A, B and C.
- Name the radiations labelled A, B and C.
- Explain clearly how you used the diagram to arrive at the answer in part (a).
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.
State following four properties each of α, β and γ radiations:
- Nature,
- Charge,
- Mass and
- Effect of electric field.
State the speed of each of α, β and γ radiations.
What is the composition of α, β and γ radiations?
Compare the penetrating powers of α, β and γ-radiations.
Compare the ionising powers of α, β and γ radiations.
Which nuclear radiation will travel undeviated in an electric field?
