Chapter 21 Nuclear Physics Physics 12th Class Punjab MCQ Tests
12th Class Physics Chapter 21 MCQ Tests
Chapter 21 of 12th Class Physics has 54 questions. If you take an online MCQ test, the system will randomly choose the questions. If you want to take the quiz by chapter then click the start test button.
Total Questions: 54
Total Marks: 54
Time: Mins
Total Questions: 54
Total Marks: 54
Time: Mins
Min : 00 Sec Remaining
Question # 1
Why an alpha particle exerts larger coulomb force on nearby charges than an electron?
Question # 2
What is the comparison between the ionization energy of an atom and the binding energy of a nucleus?
Question # 3
The thorium then decays into protactinium by emitting a beta particle. What is the symbol for protactinium?
Question # 4
Which type of radioactive decay cannot be represented in the graph shown in image?
Question # 5
What is its decay constant, when its half-life is 27 minutes?
Question # 6
Three radiation doses are : Dose A is 10 rad with an RBE of 1, B is 20 rad with an RBE of 1 and C is 10 rad with an RBE of 2.Which of the following shows the order from largest to smallest, the biological damage caused by these doses?
Question # 7
The path of ions after deflection depends on which of the following factors?
Question # 8
Which of the following laws remains applicable during a nuclear reaction?
Question # 9
Why is solid state detector (SSD) more advantageous than Geiger Muller counter?
Question # 10
The thorium then decays into protactinium by emitting a beta particle. What is the symbol for protactinium?
Question # 11
Which is the new element formed by reaction of alpha particles with Beryllium?
Question # 12
There are possible dangers when dealing with radioactive substances, so which of the following statements is correct?
Question # 13
Which of the following can be used for fast counting, while operating at low voltage?
Question # 14
How is heavy water used in fission reaction?
Question # 15
Three radiation doses are : Dose A is 10 rad with an RBE of 1, B is 20 rad with an RBE of 1 and C is 10 rad with an RBE of 2.Which of the following shows the order from largest to smallest, the amount of energy delivered by these doses?
Question # 16
Which of the following is the pair of isobars?
Question # 17
Why fusion reaction takes place on high temperature?
Question # 18
What happens to the radiant energy produced in nuclear reactions in the core of the Sun?
Question # 19
What is the benefit of using nuclear fission power?
Question # 20
Cold sterilization refers to the preservation of food by which of the following methods?
Question # 21
What fraction of a radioactive sample decays after two half-lives have elapsed, if No is the original number of atoms?
Question # 22
Why a Geiger Muller tube for detecting α particles must have a very thin end window?
Question # 23
When does nuclear fission occur?
Question # 24
Which particles are knocked out by an alpha particle when it collides with an atom of a gas?
Question # 25
Radioactive tracer technique is used for which of the following purposes?
Question # 26
What are the drawbacks of a Geiger counter as a radiation detector?
Question # 27
Hydrogen bomb is an example of which type of reaction?
Question # 28
Sieverts are used to measure which of the following factors?
Question # 29
An α particle A approaches and passes by a stationary gold nucleus N. The path is shown in image. The nucleus N could be one of several isotopes of gold. Would different isotopes of gold give rise to different deviations of a particular α particle or not?
Question # 30
Which particle is also produced?
Question # 31
Condensation of polymerization involves monomers, whether they contain functional groups of same kind or different kind?
Question # 32
What is particle x?
Question # 33
How many protons and neutrons are left in the nucleus?
Question # 34
Why are thermal neutrons considered as ideal particles for nuclear fission?
Question # 35
People working with radioactive materials use a photographic film badge covered in paper. The badge is used to monitor the level of their exposure to radiation. Which radiation is detected?
Question # 36
Which of the following methods is used in archeology to determine origins of an item?
Question # 37
Solve:
Question # 38
Which of the following factors is similar in isotopes?
Question # 39
Which type of conservation takes place during a nuclear reaction?
Question # 40
Which of the following statements is true about the binding energy per nucleon of atomic nuclei?
Question # 41
Which of the following can be caused by exposure to radiations?
Question # 42
How an alpha particle may ionize an atom without directly hitting the electrons?
Question # 43
Why the top and bottom surfaces of the solid state detector are coated with the thin gold foil?
Question # 44
How do we know that fission isn't responsible for the Sun's energy?
Question # 45
The count rate from a radioactive material falls from 400 counts per second to 50 counts per second in 12 minutes. What is its half-life?
Question # 46
In which type of radioactive disintegration, neutron dissociates into a proton and an electron?
Question # 47
What is the percentage of the original quantity of a radioactive material left after 5 half lives, approximately?
Question # 48
Which of the following cycles produces energy in sun and stars?
Question # 49
Which ways are used for treatment of cancer through radiations?
Question # 50
Which of the following species will be deflected to the greatest extent?
Question # 51
The masses of some particles and nuclei are given in image. What is the change, in u, of the rest mass for the reaction
Question # 52
Which of the following is a neutron-nuclear reaction?
Question # 53
Release of energy from the Sun is due to which of the following processes?
Question # 54
Tritium is a radioactive isotope of hydrogen with a half-life of 12 years. If a sample starts with 40 million atoms of tritium, how many atoms of tritium will be left after 12 years?
Total Questions
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354
Question # 1
Why an alpha particle exerts larger coulomb force on nearby charges than an electron?
Question # 2
What is the comparison between the ionization energy of an atom and the binding energy of a nucleus?
Question # 3
The thorium then decays into protactinium by emitting a beta particle. What is the symbol for protactinium?
Question # 4
Which type of radioactive decay cannot be represented in the graph shown in image?
Question # 5
What is its decay constant, when its half-life is 27 minutes?
Question # 6
Three radiation doses are : Dose A is 10 rad with an RBE of 1, B is 20 rad with an RBE of 1 and C is 10 rad with an RBE of 2.Which of the following shows the order from largest to smallest, the biological damage caused by these doses?
Question # 7
The path of ions after deflection depends on which of the following factors?
Question # 8
Which of the following laws remains applicable during a nuclear reaction?
Question # 9
Why is solid state detector (SSD) more advantageous than Geiger Muller counter?
Question # 10
The thorium then decays into protactinium by emitting a beta particle. What is the symbol for protactinium?
Question # 11
Which is the new element formed by reaction of alpha particles with Beryllium?
Question # 12
There are possible dangers when dealing with radioactive substances, so which of the following statements is correct?
Question # 13
Which of the following can be used for fast counting, while operating at low voltage?
Question # 14
How is heavy water used in fission reaction?
Question # 15
Three radiation doses are : Dose A is 10 rad with an RBE of 1, B is 20 rad with an RBE of 1 and C is 10 rad with an RBE of 2.Which of the following shows the order from largest to smallest, the amount of energy delivered by these doses?
Question # 16
Which of the following is the pair of isobars?
Question # 17
Why fusion reaction takes place on high temperature?
Question # 18
What happens to the radiant energy produced in nuclear reactions in the core of the Sun?
Question # 19
What is the benefit of using nuclear fission power?
Question # 20
Cold sterilization refers to the preservation of food by which of the following methods?
Question # 21
What fraction of a radioactive sample decays after two half-lives have elapsed, if No is the original number of atoms?
Question # 22
Why a Geiger Muller tube for detecting α particles must have a very thin end window?
Question # 23
When does nuclear fission occur?
Question # 24
Which particles are knocked out by an alpha particle when it collides with an atom of a gas?
Question # 25
Radioactive tracer technique is used for which of the following purposes?
Question # 26
What are the drawbacks of a Geiger counter as a radiation detector?
Question # 27
Hydrogen bomb is an example of which type of reaction?
Question # 28
Sieverts are used to measure which of the following factors?
Question # 29
An α particle A approaches and passes by a stationary gold nucleus N. The path is shown in image. The nucleus N could be one of several isotopes of gold. Would different isotopes of gold give rise to different deviations of a particular α particle or not?
Question # 30
Which particle is also produced?
Question # 31
Condensation of polymerization involves monomers, whether they contain functional groups of same kind or different kind?
Question # 32
What is particle x?
Question # 33
How many protons and neutrons are left in the nucleus?
Question # 34
Why are thermal neutrons considered as ideal particles for nuclear fission?
Question # 35
People working with radioactive materials use a photographic film badge covered in paper. The badge is used to monitor the level of their exposure to radiation. Which radiation is detected?
Question # 36
Which of the following methods is used in archeology to determine origins of an item?
Question # 37
Solve:
Question # 38
Which of the following factors is similar in isotopes?
Question # 39
Which type of conservation takes place during a nuclear reaction?
Question # 40
Which of the following statements is true about the binding energy per nucleon of atomic nuclei?
Question # 41
Which of the following can be caused by exposure to radiations?
Question # 42
How an alpha particle may ionize an atom without directly hitting the electrons?
Question # 43
Why the top and bottom surfaces of the solid state detector are coated with the thin gold foil?
Question # 44
How do we know that fission isn't responsible for the Sun's energy?
Question # 45
The count rate from a radioactive material falls from 400 counts per second to 50 counts per second in 12 minutes. What is its half-life?
Question # 46
In which type of radioactive disintegration, neutron dissociates into a proton and an electron?
Question # 47
What is the percentage of the original quantity of a radioactive material left after 5 half lives, approximately?
Question # 48
Which of the following cycles produces energy in sun and stars?
Question # 49
Which ways are used for treatment of cancer through radiations?
Question # 50
Which of the following species will be deflected to the greatest extent?
Question # 51
The masses of some particles and nuclei are given in image. What is the change, in u, of the rest mass for the reaction
Question # 52
Which of the following is a neutron-nuclear reaction?
Question # 53
Release of energy from the Sun is due to which of the following processes?
Question # 54
Tritium is a radioactive isotope of hydrogen with a half-life of 12 years. If a sample starts with 40 million atoms of tritium, how many atoms of tritium will be left after 12 years?
Total Questions
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354
Physics MCQ Test by Topics
- +21.1 Atomic Nucleus
- +21.2 Isotopes
- +21.2 Mass Spectrograph
- +21.3 Mass Defect and Binding Energy
- +21.4 Radioactivity
- +21.4 Nuclear transmutation
- +21.5 Half Life
- +21.6 Interaction of Radiation With Matter
- +21.7 Radiation Detectors
- +21.7 Wilson Cloud Chamber
- +21.7 Geiger-Muller Counter
- +21.7 Solid State Detector
- +21.8 Nuclear Reactions
- +21.9 Nuclear Fission
- +21.9 Fission Chain Reaction
- +21.9 Nuclear Reactor
- +21.9 Types of Reactors
- +21.10 Fusion Reaction
- +21.10 Nuclear Reaction in the Sun
- +21.11 Radiation Exposure
- +21.12 Biological Effects of Radiation
- +21.13 Biological and Medical Uses of Radiation
- +21.13 Tracer Techniques
- +21.13 Medical Exposure and Therapy
- +21.13 Radiography
- +21.14 Basic Forces of Nature
- +21.15 Building Blocks of Matter
Physics
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Updated on: 01-09-2026
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