Advertisements
Advertisements
प्रश्न
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).
Advertisements
उत्तर
- The radiations are-
- A → γ radiation
- B → α radiation
- C → β radiation
-
- The radiation labelled as A pass undeviated which means that they are uncharged (or neutral) so they must be γ radiations.
- The radiation labelled as B turn to the left which means that they are positively charged so they must be α radiations.
- The radiation labelled as C turn to the right which means that they are negatively charged so they must be β radiations.
APPEARS IN
संबंधित प्रश्न
A radioactive source emits three types of radiations.
Name the three radiations.
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.
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.
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.
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.
