LU B.Sc Sem 3 Physics Perspective of Quantum Physics Important Questions 2026 | PYQ Pattern
LU B.Sc 3rd Semester Physics (Perspective of Quantum Physics) Important Questions 2026 – Lucknow University (LU) aur affiliated colleges ke B.Sc NEP Semester III (PCM group) students ke liye Physics – Perspective of Quantum Physics (Paper-II) ke sabse important questions, bilkul previous year question paper (PYQ) pattern me. Saare questions neeche page par hi hain – section-wise.
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Paper Details – B.Sc Sem 3 Physics (LU NEP 2026)
| University | University of Lucknow (LU) + affiliated colleges |
| Course | B.Sc. III Semester (NEP) – PCM |
| Paper | Physics – Perspective of Quantum Physics (Paper-II) |
| Time / Marks | 2 Hours / 75 Marks |
| Pattern | Kul 4 questions: Section A se 1 (15 marks) + Section B se 3 (20 marks each) |
Section A – Important Questions (15 Marks)
Note: Section A se koi ek question attempt karna hai.
Q1. (a) Explain how the photoelectric effect and Compton scattering show the particle nature of light.
(b) A 1 MeV photon is scattered through 90° by a free electron. Find the energy of the scattered photon. [15 Marks]
Q2. (a) Explain how X-rays are produced and distinguish between continuous and characteristic X-rays.
(b) An X-ray tube works at an anode potential of 10 kV with an anode current of 15 mA. Find the number of electrons striking the anode per second and the minimum wavelength emitted. [15 Marks]
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Section B – Important Questions (20 Marks)
Note: Section B se koi teen questions attempt karne hain.
Q3. State and discuss Heisenberg’s uncertainty principle. Use it to show that an electron cannot reside inside the nucleus and to estimate the ground state energy of hydrogen. [20 Marks]
Q4. A particle is confined in a rigid one-dimensional box of length L. Solve the Schrödinger equation and find the normalized wave functions, the energy levels and the probability of finding the particle between 0.45 L and 0.55 L in the ground state. [20 Marks]
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Q5. A particle of energy E > V₀ moves towards a step potential V = 0 for x < 0 and V = V₀ for x > 0. Solve the Schrödinger equation in both regions and find the reflection and transmission coefficients. [20 Marks]
Q6. What is the Zeeman effect? Give the theory of the normal Zeeman effect and distinguish it from the anomalous Zeeman effect. [20 Marks]
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Q7. (a) Explain LS and jj coupling with suitable examples.
(b) Explain the Stern-Gerlach experiment and its significance. [20 Marks]
Q8. Discuss Bohr’s model of the atom and its limitations. Obtain expressions for the energy and radius of the hydrogen atom. [20 Marks]
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Q9. (a) Show that the velocity of a particle equals the group velocity of its associated wave packet.
(b) Describe the Davisson-Germer experiment. [20 Marks]
Q10. Write short notes on: (a) Ehrenfest theorem (b) Gravitational redshift (c) Ultraviolet catastrophe [20 Marks]
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Exam Tips – Physics (Perspective of Quantum Physics)
- Section A ke long answers ke short notes bana lo – 15 marks pakke karo.
- Section B ke derivations / numericals / diagrams ki practice karo.
- Upar ke questions ko 2 ghante me PYQ ki tarah solve karke dekho.
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B.Sc Sem 3 – Baaki Papers ke Important Questions
- B.Sc Sem 3 Physics – Heat and Thermodynamics
- B.Sc Sem 3 Mathematics – Linear and Abstract Algebra
- B.Sc Sem 3 Mathematics – Mechanics
- B.Sc Sem 3 Chemistry – Physical Chemistry-I
- B.Sc Sem 3 Zoology – Diversity and Biology of Chordata
- B.Sc Sem 3 Botany – Plant Taxonomy, Development and Reproduction
- B.Sc 3rd Semester – All Subjects (PCM & ZBC) Important Questions 2026
FAQs
LU B.Sc 3rd Semester Physics (Perspective of Quantum Physics) exam me kitne questions attempt karne hote hain?
Ye 75 marks ka 2 ghante ka paper hai. Kul 4 questions attempt karne hote hain – Section A se 1 question (15 marks) aur Section B se 3 questions (20-20 marks).
Kya ye LU B.Sc Sem 3 Physics ka official previous year question paper (PYQ) hai?
Nahi. Ye LUUPDATE team ka banaya 2026 exam ke liye most important questions ka set hai, jo Lucknow University ke previous year papers ke pattern aur NEP syllabus par based hai.
B.Sc Sem 3 Physics Perspective of Quantum Physics ke answers / solutions kahan milenge?
LUUPDATE ke Most Important Questions course (BA, B.Sc, B.Com Sem I, III & V) me har question ka pura solution milta hai – sirf ₹99 me, LUUPDATE App par.
Ye paper kis group ke liye hai – PCM ya ZBC?
Physics (Perspective of Quantum Physics) LU B.Sc NEP Semester III ke PCM group ke students ke liye hai.
Disclaimer: Ye LUUPDATE team dwara taiyar kiye gaye expected important questions hain (previous year pattern par), Lucknow University ka official question paper nahi. Exam pattern aur syllabus ke liye university ka official notice zaroor dekhein.
