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

Question # 3

A radioactive nucleus can emit:

Question # 4

The rate of decay radioactive substance:

Question # 5

Due to emission of 𝖰+ − 𝒓𝒂𝒚𝒔:

Question # 6

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

Question # 7

Because of large mass when 𝑎 −paricle enters the atom or molecule it:

Question # 8

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

Question # 9

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

Question # 10

Which of the following have maximum ionization power?

Question # 11

The example of nuclear fusion is:

Question # 12

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

Question # 13

Which row is correct for fission and for fusion?

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

The half-life of a certain element is 3.5 days at STP. If the temperature is doubled and pressure is reduced to half then half-life of the same element will be:

Question # 16

During a negative β-decay

Question # 17

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 # 18

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

Question # 19

Beta particles have penetration of about:

Question # 20

In an 𝑎 −decay:

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MCAT Class Physics Chapter 16 Important MCQ's

Sr.# Question Answer
1 In an 𝑎 −decay:
A. The parent and daughter nuclei have same number of protons
B. The daughter nucleus has one proton more than parent nucleus
C. The daughter nucleus has two protons less than parent nucleus
D. The daughter nucleus has two neutrons more than parent nucleus
2 The mother and daughter elements with the emission of 𝖰 − 𝒓𝒂𝒚𝒔, are called:
A. Isotopes
B. Isobars
C. Isomers
D. Isodiapheres
3 Three quarks make up a:
A. Leptons
B. Mesons
C. Baryons
D. Quark
4 The most penetrating radiations out of the following is that of
A. 𝛾-rays
B. β-rays
C. α-particles
D. X-rays
5 A radioactive nucleus can emit:
A. Electron
B. 𝛼 particles
C. Positron
D. Any of these
6 A thorium nucleus is formed when a uranium nucleus emits an 𝑎 −particles. Atomic number of thorium is :
A. 23
B. 60
C. 90
D. 70
7 A radioactive isotope 𝟐𝟑𝟖 𝑼 decays consecutively to 𝟐𝟑𝟒 𝑼 the particles emitted are:
A. One 𝛼 and one 𝛽
B. Two 𝛼 and one 𝛽
C. e 𝛼 and two 𝛽
D. Two 𝛼 and two 𝛽
8 If the radioactive substance reduces to 𝟏 𝟏𝟔 PHYSICS of its original mass in 40 days then its half-life is:
A. 10days
B. 20days
C. 40days
D. 4days
9 The phenomenon of radioactivity is associated with:
A. Fission of nucleus
B. Disintegration of neutrons
C. Emission of spectral lines
D. Spontaneous disintegration of the nuclei of atoms
10 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

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