Structure of Atomic Nucleus MCQs

Prepare for Structure of Atomic Nucleus MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

1,039 Solved Questions • 780 Mins Practice • Updated for 2026 Competitive Exams
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2026 Solved Edition · Updated October 2026 · Verified Editorial Standards

Welcome to the verified preparation module for Structure of Atomic Nucleus MCQs on McqsMind. This comprehensive set offers solved multiple-choice questions with answers, detailed explanations, and authentic past-paper style questions aligned with the latest syllabus of Nuclear Physics (Physics).

100% Verified Answer Keys CSS, PMS, FPSC, PPSC, NTS Ready 2026/2027 Syllabus Guidelines

Direct Definition & Conceptual Scope

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Structure of Atomic Nucleus constitutes an essential examination topic within Physics, evaluating theoretical principles, historical context, and practical problem-solving applications. On MCQsMind, candidates practice verified past-paper solutions, conceptual breakdowns, and syllabus-aligned questions tailored for CSS, PMS, and competitive screening examinations.

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Topic Notes: Structure of Atomic Nucleus

Quick Revision 2 min read 15 key points
Section 1 of 4

1 1. Fundamental Composition

4 points
  • Definition
    Nucleons: The collective term for protons and neutrons, which are the primary constituents of the atomic nucleus, held together by the strong nuclear force.
  • Fact
    Nuclide Notation: Represented as A/Z X, where Z is the atomic number (protons) and A is the mass number (protons + neutrons).
  • Fact
    Neutron Number (N): Calculated as N = A - Z. It determines the isotope identity of an element.
  • Fact Jan 2024
    Atomic Scale: The nucleus is extremely dense, containing 99.9% of the atom's mass but occupying only 1/10^15 of the atom's total volume.
Section 1 / 4
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2
Why are γ-rays not deflected by a magnetic field?
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3
In the nuclear reaction U235 + n -> U236 -> 56Ba141 + 36Kr92 + 3n + Q the average value of Q is found to be 180 MeV. Compute the consumption rate of U235 per year if power generation is to be an average 100 MW (take efficiency = 100%)
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4
Bohr's theory was modified by
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5
When two nuclei of masses m1 and m2 fuse to form nucleus of mass m and some energy is released, then
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8
____ is the organisation responsible for conducting the Big Bang experiment.
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9
The SI unit of equivalent dose is
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10
The energy of neutrons obtained during a fission reaction is
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Pedagogical Syllabus Blueprint

Structure of Atomic Nucleus MCQs: Preparation Strategy & Exam Blueprint

Examination Weightage & Commission Distribution

In Pakistan's premier competitive examinations—including the Federal Public Service Commission (FPSC General Recruitment & CSS MPT), Punjab Public Service Commission (PPSC Lecturer, Tehsildar & PMS Screening), KPPSC, SPSC, and BPSC—questions derived from Structure of Atomic Nucleus MCQs consistently constitute a decisive 10% to 25% weightage of the Nuclear Physics paper. Testing agencies frequently evaluate both foundational factual recall and deeper analytical comprehension, requiring aspirants to master key dates, statutory articles, constitutional clauses, and thematic definitions.

High-Yield Conceptual Pillars & Distractor Analysis

Historical trend analysis across past five-year examination cycles demonstrates that examiner traps frequently involve closely matched numerical alternatives, chronologically contiguous treaties, and semantic subtleties in statutory phraseology. When preparing Structure of Atomic Nucleus MCQs, candidates must deliberately review the underlying rationale provided for every question rather than merely memorizing raw answer options. Understanding why incorrect distractors fail is the most reliable predictor of achieving top percentiles in computerized and optical mark recognition (OMR) screening tests.

Negative Marking Mitigation & Time Management Protocol

For examinations enforcing negative marking penalties (such as PPSC's 0.25-mark deduction per erroneous response or NTS gatekeeper quotas), an aggressive elimination technique must be deployed. Candidates should systematically rule out improbable options first to elevate probability thresholds from 25% to 50% or 100%. Allocating an average of 45 to 60 seconds per item during mock trials builds the psychological stamina and cognitive precision required to complete 100-question papers within official 90-minute time limits.

Recommended Reference Sources & Statutory Reading

To achieve definitive conceptual mastery in Physics, candidates are advised to cross-reference our solved explanations with primary gazettes, statutory texts, and canonical academic textbooks. Verifying controversial questions against authentic official repositories guarantees that prospective civil servants and professional candidates present incontestable answers during both optical paper evaluations and viva voce departmental interviews.