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When was the CSIR NET Physical Science Exam 2025 conducted?
The exam was held on 28 July 2025 in Shift 2 from 3:00 PM to 6:00 PM.
Who conducted the CSIR NET 2025 exam?
The exam was conducted by the National Testing Agency (NTA).
What was the overall difficulty level of the CSIR NET Physical Science exam?
The paper was moderate to difficult, with a mix of theoretical and numerical questions.
How many total questions were there in the CSIR NET Physical Science paper?
The paper had 75 questions, out of which only 55 were to be attempted.
What are the expected cut-off marks for CSIR NET 2025 Physical Science?
For the General category, the cut-off is expected to be around 98-100 marks.
CSIR NET Physical Science Exam Analysis 2025, Good Attempts, Difficulty Level
Amit kumar Singh29 Jul, 2025
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CSIR NET Physical Science Exam Analysis 2025: The CSIR NET Physical Science Exam 2025 was successfully conducted by the National Testing Agency (NTA) on 28th July 2025. The exam was held in the second shift from 3:00 PM to 6:00 PM in online CBT mode. It had multiple-choice questions from various physical science topics, along with general aptitude.
Here we provide a complete CSIR NET 2025 exam analysis of the Physical Science paper, including section-wise difficulty, topic-wise good attempts, and expected cut-off as per reviews shared by students. The overall difficulty of the paper was moderate to slightly difficult, with a mix of conceptual and numerical questions across all sections.
CSIR NET Physical Science Exam Analysis 2025 Overview
The CSIR NET Physical Science Exam 2025 for the June session was conducted on 28th July 2025 by the National Testing Agency (NTA). The exam was held in Shift 2 from 3:00 PM to 6:00 PM in online Computer-Based Test (CBT) mode across multiple exam centers all over India. The paper was divided into three parts. Part A, General Aptitude. Part B, and Part C, Subject-specific questions It had a total of 75 questions, out of which only 55 were to be attempted. The exam assessed candidates on their conceptual clarity, numerical problem-solving ability, and application-based understanding of physical science.
CSIR NET Physical Science Exam Analysis 2025 Overview
CSIR NET Phyical Science Topic-wise Question Asked
The Physical Science paper in CSIR NET 2025 featured a number of conceptual and numerical questions from core topics. Below is a section-wise list of important topics that were asked in the exam:
Questions Asked in CSIR NET Physical Science 2025 Exam
Subject Area
Topics Asked
Mathematical Physics
- Contour integration - Dirac delta function - Differential equation with curve dydx\frac{dy}{dx} - Expectation value of xx - Probability of ℏc/2\hbar c/2 - Integration and derivative-based questions
Classical Mechanics
- Hamiltonian to Lagrangian conversion - Principal moment of inertia - Harmonic oscillator – value of nn - Finding Hamiltonian
Electronics & Experimental Methods
- PN junction theory - Transistor-related problem
Atomic & Molecular Physics
- Rotational and vibrational spectra - Spectra interpretation questions
Thermodynamics & Statistical Physics
- CPCV\frac{C_P}{C_V} for diatomic gas - Thermal microstate vs energy - kT>kT > vibrational energy comparison
Nuclear & Particle Physics
- Q-value and Binding energy calculation
Quantum Mechanics
- Perturbation theory application - Graph-based concept in wave mechanics - Random walk-based question
CSIR NET Physical Science Exam 2025 Section-wise Difficulty Level
The CSIR NET Physical Science Exam 2025 was divided into three parts. Each section question paper was held in a manner to test candidates on different skill sets ranging from general aptitude to in-depth knowledge. Based on the student feedback and expert analysis, the difficulty level varied section by section. Here is a quick description of section-wise difficulty level:
CSIR NET Physical Science Exam 2025 Section-wise Difficulty
Part
Difficulty Level
Part A
Easy
Part B
Difficult
Part C
Hard
Overall Difficulty: Moderate to Difficult
Students found Part B and C numerically tough and conceptually tricky.
CSIR NET Physical Science Exam 2025 Good Attempts
Based on memory-based feedback from candidates, here is mentioned estimated number of good attempts and difficulty level for each question paper section:
CSIR NET Physical Science Exam Analysis 2025 Part A
Part A tested candidates on general aptitude, numerical ability, logical reasoning, and basic mathematics. Questions were straightforward and time-manageable.
CSIR NET Physical Science Exam Analysis 2025 Part A
Topics
Good Attempts
Difficulty Level
Percentage
1
Easy
Probability
2–3
Moderate
Quadratic Equations
1
Moderate
Series Formation
1
Easy
Puzzles
1
Moderate
Data Interpretation
2
Moderate
Partnership
1
Easy to Moderate
Logarithms
1
Easy
Profit & Loss
1
Easy to Moderate
Symbols & Notations
1
Easy
LCM and HCF
1
Moderate
CSIR NET Physical Science Exam Analysis 2025 Part B and Part C
Parts B and C consisted of core physical science topics. Questions were conceptual and numerically intensive in Part C. Many candidates reported trickier questions in quantum mechanics and classical mechanics.
CSIR NET Physical Science Exam Analysis 2025 Part B and Part C
Topics
Good Attempts
Difficulty Level
Mathematical Methods of Physics
1–2
Difficult
Classical Mechanics
2
Moderate to Difficult
Quantum Mechanics
2
Difficult
Thermodynamics & Statistical Physics
2–3
Moderate to Difficult
Electronics and Experimental Methods
1–2
Moderate
Atomic & Molecular Physics
3–4
Moderate
Nuclear & Particle Physics
2–3
Moderate to Difficult
CSIR NET Physical Science Exam 2025 Marking Scheme
Understanding the marking scheme is essential to estimate your score and chances of qualification:
CSIR NET Physical Science Exam 2025 Marking Scheme
Section
Total Marks
Total Questions
Attemptable
Correct Answer
Negative Marking
Part A
30
20
15
+2
-0.5
Part B
70
25
20
+3.5
-0.875
Part C
100
30
20
+5
-1.25
Total
200
75
55
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CSIR NET 2025 Physical Science Cut Off (Expected)
Based on the difficulty level of the 28 July 2025 exam, here is the expected cut-off range for physical science:
CSIR NET 2025 Expected Cut Off Physical Science
Category
Expected Cut Off (%)
Expected Marks (out of 200)
General (UR)
49–50%
98–100
EWS
45–48%
90–96
OBC (NCL)
43–46%
86–92
SC/ST
35–40%
70–80
Note: These are tentative and based on post-exam student feedback. Actual cut-offs may vary once results are declared.
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