MDCAT Physics Chapter 16 MCQ Test With Answer for (Nuclear Physics)

MCQ's Test For MDCAT Physics Chapter 16 Nuclear Physics MCQ's Test

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MDCAT Physics Chapter 16 Nuclear Physics MCQ's Test

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Question # 1

The mother and daughter elements with the emission of 𝖰 − 𝒓𝒂𝒚𝒔, are called:

Question # 2

The more readily fissionable isotope of uranium has an atomic mass of:

Question # 3

Which row is correct for fission and for fusion?

Question # 4

When a radioactive nucleus remits a beta particle, the proton neutron ratio:

Question # 5

Due to emission of 𝖰+ − 𝒓𝒂𝒚𝒔:

Question # 6

The fusion of hydrogen into helium is more likely to take place:

Question # 7

A count rate 240 per minute reduces to 30 counts per min in 1 hour. The half-life of source is:

Question # 8

During a negative β-decayv

Question # 9

During a negative β-decay

Question # 10

In nuclear fission reaction, when the products are 140X and 94Sr, the number of neutrons emitted is

Question # 11

The phenomenon of radioactivity is associated with:

Question # 12

When the radioactive nucleus emits a beta particle, the proton neutron ration:

Question # 13

A radioactive isotope 𝟐𝟑𝟖 𝑼 decays consecutively to 𝟐𝟑𝟒 𝑼 the particles emitted are:

Question # 14

The uranium Nucleus 𝟐𝟑𝟖 𝑼 undergoes successive decays, emitting respectively 𝑎 − 𝒓𝒂𝒚,𝖰 − 𝒓𝒂𝒚 𝒂𝒏𝒅 − 𝒓𝒂𝒚𝒔. What is the atomic number and atomic mass of the resulting nucleus:

Question # 15

Three quarks make up a:

Question # 16

The particles equal in mass or greater than mass of protons are called:

Question # 17

The rate of decay radioactive substance:

Question # 18

A thorium nucleus is formed when a uranium nucleus emits an 𝑎 −particles. Atomic number of thorium is :

Question # 19

Beta particles have less ionizing power than that of alpha particles because:

Question # 20

The activity of a radioactive sample is 1.6 curie and half-life is 2.5 days. Its activity after 10 days will be:

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Sr.# Question Answer
1 The mother and daughter elements with the emission of 𝖰 − 𝒓𝒂𝒚𝒔, are called:
A. Isotopes
B. Isobars
C. Isomers
D. Isodiapheres
2 The rate of decay radioactive substance:
A. Is constant
B. Decrease exponentially with time
C. Varies inversely with time
D. Decrease linearly with time
3 The most penetrating radiations out of the following is that of
A. 𝛾-rays
B. β-rays
C. α-particles
D. X-rays
4 Three quarks make up a:
A. Leptons
B. Mesons
C. Baryons
D. Quark
5 Which row is correct for fission and for fusion?
A. Produces larger nuclei
B. Produces larger nuclei
C. Produces smaller nuclei
D. Produces smaller nuclei
6 The fusion of hydrogen into helium is more likely to take place:
A. At high temperature and high pressure
B. At high temperature and low pressure
C. At low temperature and low pressure
D. At low temperature and high pressure
7 The activity of a radioactive sample is 1.6 curie and half-life is 2.5 days. Its activity after 10 days will be:
A. 0.8 Curie
B. 0.1Curie
C. 0.4 Curie
D. 0.16 Curie
8 The half-life of a radioactive element which has only 1//32 of its original mass left after a lapse of 60 days is:
A. 12days
B. 10days
C. 22days
D. 36days
9 A radioactive substance has a half-life of 4 months. Three-fourths of the substance will decay in:
A. 5months
B. 6months
C. 8months
D. 7months
10 The more readily fissionable isotope of uranium has an atomic mass of:
A. 220
B. 230
C. 235
D. 240

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