EASY
10th ICSE
IMPORTANT
Earn 100

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 x. (a) Show in the diagram how the particles get affected.
[Hint : Alpha particles will deflect to the left while beta particles to the right]

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Important Questions on Thermionic Emission and Radioactivity

EASY
10th ICSE
IMPORTANT

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 x. (a) Show in the diagram how the particles get affected. (b) Name the law used in part (a).
[Hint : Alpha particles will deflect to the left while beta particles to the right]

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EASY
10th ICSE
IMPORTANT

Figure shows a radioactive source S in a thick lead walled container having a narrow opening. The radiations pass through an electric field between the plates A and B.

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Complete the diagram to show the paths of α,β and γ radiations.

EASY
10th ICSE
IMPORTANT

Figure shows a radioactive source S in a thick lead walled container having a narrow opening. The radiations pass through an electric field between the plates A and B.

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Why is the source S kept in a thick lead walled container with a narrow opening ?

EASY
10th ICSE
IMPORTANT
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.
[Hint : Alpha and beta particles are charged, but gamma rays are uncharged]
EASY
10th ICSE
IMPORTANT
Is it possible to deflect $\gamma$-radiations in a way similar to α and β-particles, using the electric or magnetic field ? Give reason.
EASY
10th ICSE
IMPORTANT
State following four properties each of α,β and γ radiations : nature.
EASY
10th ICSE
IMPORTANT
State following four properties each of α,β and γ radiations :charge.
EASY
10th ICSE
IMPORTANT
State following four properties each of α,β and γ radiations : mass.