α, β and γ Radiations

IMPORTANT

α, β and γ Radiations: Overview

This topic covers concepts, such as, Alpha Decay, Change in Atomic Number after Alpha Decay, Comparison of Deflection of Alpha Particles & Beta and Gamma Rays in Electric and Magnetic Fields etc.

Important Questions on α, β and γ Radiations

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Physics>Nuclear Physics>α, β and γ Radiations> Q 1

Out of the two characteristics – the mass number (A) and the atomic number (Z) – of a nucleus, which one does not change during nuclear   β− decay?

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Physics>Nuclear Physics>α, β and γ Radiations> Q 2

Out of the two characteristics – the mass number (A) and the atomic number (Z) – of a nucleus, which one does not change during nuclear   β− decay?

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Physics>Nuclear Physics>α, β and γ Radiations> Q 3

The end product on the β− decay of   15 32 P  is:

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Physics>Nuclear Physics>α, β and γ Radiations> Q 4

The end product of the β- decay of 1532P is

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Physics>Nuclear Physics>α, β and γ Radiations> Q 5

Which are amongst the following represent plot of the distribution of kinetic energy of β− particles?

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Physics>Nuclear Physics>α, β and γ Radiations> Q 6

β− particle is emitted in a radio active reaction when

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Physics>Nuclear Physics>α, β and γ Radiations> Q 7

When Boron nucleus   ( 5 10 B )  is bombarded by neutrons,   α - particles are emitted. The resulting nucleus is of the element _____________ and has the mass number_____________

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Physics>Nuclear Physics>α, β and γ Radiations> Q 8

In the Uranium radioactive series, the initial nucleus is   238 92 U  and the final nucleus is   206 82 Pb . When the Uranium nucleus decays to lead, the number of  α-particles emitted is _______________ and the number of   β-particles emitted is _______________.

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Physics>Nuclear Physics>α, β and γ Radiations> Q 9

In which process neutron is converted into proton?

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Physics>Nuclear Physics>α, β and γ Radiations> Q 10

In the given nuclear reaction, the element X is Na1122→X+e++v

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Physics>Nuclear Physics>α, β and γ Radiations> Q 11

Concept of neutrino was given by,

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Physics>Nuclear Physics>α, β and γ Radiations> Q 12

_____ wave are the electromagnetic waves has the highest frequency among radio wave, gamma wave , Micro-wave, infrared wave.

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Physics>Nuclear Physics>α, β and γ Radiations> Q 13

Which of the following rays that can penetrate several centimetres of thick lead, and are not deflected by magnetic fields?
a) Alpha b) Beta c) Gamma.

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Physics>Nuclear Physics>α, β and γ Radiations> Q 14

Among Alpha, Beta, Gamma, and X-rays, Gamma rays are the rays that can penetrate several centimetres of thick lead, and are not deflected by magnetic fields?

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Physics>Nuclear Physics>α, β and γ Radiations> Q 15

Which radiation has the highest penetrating power?

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Physics>Nuclear Physics>α, β and γ Radiations> Q 16

The beta spectrum, or distribution of energy values for the beta particles, is _____.

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Physics>Nuclear Physics>α, β and γ Radiations> Q 17

 Energy spectrum of beta particles is continuous.

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Physics>Nuclear Physics>α, β and γ Radiations> Q 18

Why energy spectrum of beta particles is continuous?

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Physics>Nuclear Physics>α, β and γ Radiations> Q 19

The energy spectrum of β−particles [number N(E) as a function of β−energy E] emitted from a radioactive source is

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Physics>Nuclear Physics>α, β and γ Radiations> Q 20

Do beta particles have low velocity?