“NEET Modern Physics MCQs 2025 | Practice Questions with Answers for PVQQ Preparation”

 “NEET Modern Physics MCQs 2025 | Practice Questions with Answers for PVQQ Preparation”

Modern Physics is one of the most scoring sections in NEET 2025, covering topics like photoelectric effect, atomic models, nuclear physics, and quantum mechanics. Students preparing for NEET often struggle with conceptual clarity and application-based problems. To help aspirants, MCQJourney.com brings a comprehensive set of NEET Modern Physics MCQs with Answers designed for PVQQ (Practice, Verify, Quick-Quiz) learning. These questions are carefully curated to match the latest NEET exam pattern and syllabus, ensuring maximum relevance. Each MCQ is accompanied by a detailed answer, making it easy for students to self-assess and strengthen weak areas. Whether you are revising for last-minute preparation or building a strong foundation, this article provides a complete practice set of 20+ Modern Physics MCQs for NEET 2025. Boost your confidence, improve speed, and master key concepts with this SEO-optimized resource. Stay ahead in your NEET journey with MCQJourney.com – your trusted partner for Exams, GK, Current Affairs, and Education.

1. Which formula gives the energy of a photon?
   a) E = mc²
   b) E = h f ✅
   c) E = ½ mv²
   d) E = h/λ

2. Which scientist explained the photoelectric effect (proposed quantized light energy)?
   a) Rutherford
   b) Einstein ✅
   c) Planck
   d) Bohr

3. The de Broglie wavelength (λ) of a particle is inversely proportional to its:
   a) Momentum ✅
   b) Energy
   c) Frequency
   d) Charge

4. In a nuclear fission reaction, energy is released due to:
   a) Mass defect ✅
   b) Coulomb force
   c) Magnetic field
   d) Gravitational pull

5. Which of the following particles has zero rest mass?
   a) Proton
   b) Neutron
   c) Photon ✅
   d) Electron

6. Which atomic model explains the Hydrogen atom spectrum?
   a) Bohr’s model ✅
   b) Nuclear model
   c) Photoelectric model
   d) Radioactivity model

7. Which nucleus has (approximately) the maximum binding energy per nucleon (i.e., is most stable)?
   a) Uranium
   b) Iron ✅
   c) Hydrogen
   d) Helium

8. X-rays are produced when:
   a) Electrons strike a metal target ✅
   b) Nuclei decay
   c) Atoms ionize
   d) Photons collide

9. Which radiation among the following has the highest penetrating power?
   a) Alpha rays
   b) Beta rays
   c) Gamma rays ✅
   d) Neutrons

10. What is the SI unit of Planck’s constant (h)?
    a) J·s ✅
    b) N·m
    c) W·s
    d) eV

11. Threshold frequency (in the photoelectric effect) is associated with:
    a) Photoelectric effect ✅
    b) Nuclear fusion
    c) Radio waves
    d) Magnetism

12. Which isotope is commonly used as fuel in nuclear power plants?
    a) U-235 ✅
    b) C-14
    c) H-2
    d) O-16

13. Wave–particle duality (matter has wave nature) was proposed by:
    a) Einstein
    b) de Broglie ✅
    c) Bohr
    d) Planck

14. Which radiation is commonly used in cancer treatment?
    a) Gamma rays ✅
    b) Alpha rays
    c) Beta rays
    d) X-rays

15. The nucleus of the most common Hydrogen atom consists of:
    a) 1 proton ✅
    b) 1 neutron
    c) 1 electron
    d) 1 proton + 1 neutron

16. Radioactive decay follows which law?
    a) Exponential law ✅
    b) Linear law
    c) Quadratic law
    d) Logarithmic law

17. Who discovered natural radioactivity?
    a) Becquerel ✅
    b) Curie
    c) Rutherford
    d) Bohr

18. Nuclear fusion — combination of light nuclei — occurs naturally in:
    a) Sun ✅
    b) Earth’s core
    c) Nuclear reactor
    d) Magnet

19. Which radiation is deflected by electric or magnetic fields (because it is charged)?
    a) Alpha particles ✅
    b) Gamma rays
    c) Neutrons
    d) X-rays

20. According to de Broglie relation λ = h/p — if a particle’s momentum doubles, its wavelength becomes:
    a) Twice
    b) Half ✅
    c) Same
    d) Quadruple

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