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

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Half-life of radon gas is:

Question # 6

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 # 7

Nuclear fission experiments show that the neutrons the uranium nuclei into two fragment of about the same size. This process is accompanied by the emission of several:

Question # 8

Which row is correct for fission and for fusion?

Question # 9

𝑎, 𝖰 𝒂𝒏𝒅 radiations come out of radioactive substance:

Question # 10

Which of the following have maximum ionization power?

Question # 11

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

Question # 12

A radioactive nucleus can emit:

Question # 13

For atomic nucleus, the binding energy per nucleon with increase in mass number:

Question # 14

Due to emission of 𝖰+ − 𝒓𝒂𝒚𝒔:

Question # 15

The half-life of a radioactive element which has only 1//32 of its original mass left after a lapse of 60 days is:

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

The number of electrons in a nucleus X of atomic number Z and mass number A is:

Question # 20

The most penetrating radiations out of the following is that of

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MCAT Physics Chapter 16 Important MCQ's

Sr.# Question Answer
1 Half-life of radon gas is:
A. 1620 years
B. 3.8 days
C. 7 days
D. 11 days
2 When a radioactive nucleus remits a beta particle, the proton neutron ratio:
A. Decreases
B. Increases
C. Remain same
D. None of the above
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 The particles equal in mass or greater than mass of protons are called:
A. Leptons
B. Mesons
C. Baryons
D. Quarks
5 When the radioactive nucleus emits a beta particle, the proton neutron ration:
A. increases by one
B. Remains same
C. Decreases by one
D. Decreases by four
6 In nuclear fission reaction, when the products are 140X and 94Sr, the number of neutrons emitted is
A. 1
B. 2
C. 5
D. 9
7 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
8 During a negative β-decayv
A. An atomic electron is ejected
B. A neutron in the nucleus decays emitting an electron
C. An electron which already present within the nucleus is ejected
D. A part of binding energy of nuclei is converted into electron
9 The binding energy per nucleon is:
A. Greater for heavy nuclei
B. Least for heavy nuclei
C. Greatest for light nuclei
D. Greatest for medium nuclei
10 Beta particles have penetration of about:
A. 100 times more than that of the gamma particles
B. 100 times less than that of an alpha ray
C. 100 times more than that of an alpha ray
D. 10 times more than that of an alpha particle

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