MDCAT Nuclear Physics MCQs
Customize your practice drill: select target topics, configure your question limit (up to 180 MCQs per test), and choose your mode.
Total Topics
4
Selected Topics
1
Available MCQs
244
Question Limit
Up to 180
Select Topics to Practice
Questions will be drawn only from checked topics.
Test Configuration
Configure question count (limit 180) and testing mode.
Selected topics have 244 total questions. Test will draw 50 shuffled MCQs.
Sample Nuclear Physics MCQs with answers
Try these questions, then open the answer to check your reasoning. Use the quiz above for more topics and a complete review.
Nuclear Structure
1. _____ are such nuclei of an element that have the same mass number A, but have different charge number Z.
- A. Isotopes
- B. Isobars
- C. Isomers
- D. Isotherms
View answer and explanation
Answer: B. Isobars
Nuclei that share the same mass number A but have different atomic (charge) numbers Z are called isobars, since the mass (weight) is the same while the element differs. Isotopes instead share the same Z with different A (same element), and isomers or isotherms are unrelated terms, so B is correct.
Nuclear Structure
2. According to modern theories of physics which of the following is fundamental particle in nature.
- A. Neutron
- B. Proton
- C. Electron
- D. All of these
View answer and explanation
Answer: C. Electron
The electron is a lepton - a fundamental particle with no internal structure. Protons and neutrons are composite hadrons made of quarks. Hence only the electron is fundamental in nature.
Radioactive Decay
3. Q22. According to the law of radioactive decay, the rate of disintegration is directly proportional to: (DUHS 2022)
- A. Pressure
- B. Density of substance
- C. Volume of substance
- D. Number of atoms present
View answer and explanation
Answer: D. Number of atoms present
Keyword/Clue: rate of disintegration is directly proportional Concept/Formula: Radioactive decay law states that the activity (rate of disintegration) is proportional to the number of undecayed nuclei: where is the decay constant. Why the Other Options Are Wrong: - Option A: Pressure does not determine nuclear decay rate for a given radionuclide. - Option B: Density of the substance does not affect the intrinsic decay probability of nuclei. - Option C: Volume of the substance is irrelevant; decay depends on how many nuclei are present, not the container size.
About this unit
MDCAT Nuclear Physics — Unit 52
824 practice MCQs covering Nuclear Structure, Radioactive Decay, Half-Life, Radiation Uses. Select custom topics and sit tailored tests up to 180 questions per drill.
Common questions about Nuclear Physics practice
How many Nuclear Physics MCQs are available on DIFF. MDCAT?
The current Nuclear Physics question bank contains 824 practice MCQs across 4 topics. This is the bank size, not the length of one test. Choose your topics and a question count from 1 to 180, limited by the questions available in those topics.
Which topics does the Nuclear Physics quiz cover?
The selectable topics are Nuclear Structure, Radioactive Decay, Half-Life, Radiation Uses. Use Select all for a broad chapter drill, Clear to start a focused selection, or choose individual topics. Questions are drawn from your chosen topics, so you can target a weak concept before returning to a wider test.
How do I build a custom Nuclear Physics test?
Open the chapter builder, select one or more topics, enter your question count, and choose Tutor Mode or Timed Exam. The available-question total updates with your selection. Start Test generates a shuffled drill; you do not have to follow a fixed Quiz 1 or Quiz 2 sequence.
What is the difference between Tutor Mode and Timed Exam?
Tutor Mode gives feedback and an explanation after you choose an option, and you can change or clear that choice. Timed Exam runs a countdown and keeps explanations hidden until submission. Both modes let you move between questions, use the paper map, and submit for a complete review.
How do I review and download my Nuclear Physics quiz?
Select Submit Quiz, then Submit & View Explanations. The review includes every question in your test, all options, your selection, the marked correct answer when a key is available, and the explanation. Download PDF saves a paginated review; Download Review saves an HTML copy you can open in a browser. The review also includes DIFF. MDCAT community links.
How should I use Nuclear Physics MCQs to improve?
Start with a short tutor drill on one of these topics: Nuclear Structure, Radioactive Decay, Half-Life. Read the explanation for incorrect and uncertain answers, revise the relevant textbook section, and retry before taking a timed drill. Compare your reasoning with the answer key rather than memorising the option letter.