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

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

Question # 2

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

Question # 3

𝑎, 𝖰 𝒂𝒏𝒅 radiations come out of radioactive substance:

Question # 4

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 # 5

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

Question # 6

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 # 7

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

Question # 8

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 # 9

Three quarks make up a:

Question # 10

Half-life of radon gas is:

Question # 11

The binding energy per nucleon is:

Question # 12

The most penetrating radiations out of the following is that of

Question # 13

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

Question # 14

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

Question # 15

Due to emission of 𝖰+ − 𝒓𝒂𝒚𝒔:

Question # 16

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

Question # 17

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

Question # 18

During a negative β-decay

Question # 19

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 # 20

During a negative β-decayv

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MCAT Physics Chapter 16 Important MCQ's

Sr.# Question Answer
1 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
2 The number of electrons in a nucleus X of atomic number Z and mass number A is:
A. A
B. W
C. Z
D. Y
3 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
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 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 When a radioactive nucleus remits a beta particle, the proton neutron ratio:
A. Decreases
B. Increases
C. Remain same
D. None of the above
7 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
8 Due to emission of 𝖰+ − 𝒓𝒂𝒚𝒔:
A. Mass of the nucleus increases
B. Mass of the nucleus decreases
C. Charge on the nucleus increases
D. Charge number decreases
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 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:
A. Protons and positrons
B. 𝛼 −partilces
C. neutrons
D. Protons and 𝛼 −partilces

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  • jaweria

    jaweria

    24 Sep 2019

    please bring some other nuclear mcqs

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