Physics — Weightage Analysis
Chapter-wise marks distribution for TS Inter 1st Year Physics — based on the official TGBIE Model Question Paper (March 2025 onwards). Paper total: 60 marks, 3 hours.
Paper Structure
Section A — VSAQ
10 × 2 = 20
Answer ALL 10 questions (compulsory). Very short answers.
Section B — SAQ
6 × 4 = 24
Answer ANY SIX of 8 short answer questions.
Section C — LAQ
2 × 8 = 16
Answer ANY TWO of 3 long answer questions.
Chapter-wise Marks Distribution
| Chapter | 8m LAQ | 4m SAQ | 2m VSAQ | Exam Note |
|---|---|---|---|---|
| Work, Energy & Power | 8 ✓ | — | — | LAQ on conservation of energy with proof + numerical (Q19 in MQP) |
| Oscillations | 8 ✓ | — | — | LAQ: show simple pendulum is SHM, derive time period; tick-tock pendulum numerical |
| Thermodynamics | 8 ✓ | — | — | LAQ on 2nd law + how heat engine differs from refrigerator |
| Motion in a Plane (Vectors) | — | 4+4 ✓ | 2 ✓ | 2 SAQs (parallelogram law; scalar & vector products) + 1 VSAQ on vector angle |
| Thermal Properties of Matter | — | 4 ✓ | 2+2 ✓ | SAQ on heat transfer modes; VSAQs on Wien's law and heat vs temperature |
| Kinetic Theory of Gases | — | — | 2+2 ✓ | 2 VSAQs: Dalton's law of partial pressure; rms velocity when temperature changes |
| Motion in a Straight Line | — | 4 ✓ | — | SAQ on kinematics numerical (average velocity and speed) |
| Laws of Motion | — | 4 ✓ | 2 ✓ | SAQ on rolling friction laws; VSAQ on impulse calculation |
| Rotational Motion | — | 4 ✓ | — | SAQ: define angular acceleration and torque, establish relation between them |
| Gravitation | — | 4 ✓ | — | SAQ: state Kepler's three laws of planetary motion |
| Mech. Properties of Solids | — | 4 ✓ | — | SAQ: describe behaviour of a wire under gradually increasing load (stress-strain) |
| Mech. Properties of Fluids | — | — | 2+2 ✓ | 2 VSAQs: excess pressure in air bubble inside liquid; angle of contact |
| Units & Measurements | — | — | 2 ✓ | VSAQ on percentage error calculation in derived quantities |
| Waves | — | — | 2 ✓ | VSAQ: discovery of C.V. Raman (Raman Effect) |
Source: TGBIE Model Question Paper, First Year Physics, March 2025 onwards (Paper code 0119/0120).
Revision Strategy Based on Weightage
The 3 LAQ chapters (Work/Energy/Power, Oscillations, Thermodynamics) yield up to 16 marks — master all three so you can answer any two confidently.
Motion in a Plane (Vectors) is the richest SAQ cluster: 2 SAQs and a VSAQ appear in the model paper — cover parallelogram law, dot/cross products, and direction cosines.
All 10 VSAQs (Section A, 20 marks) are compulsory and span 8+ chapters — broad but shallow coverage is key here; one-line answers count.
Section B asks you to answer 6 of 8 SAQs — but prepare at least 7 topics so you have choice. Thermal Properties and Vectors are reliably represented.
Kinetic Theory and Fluids appear only as VSAQs in the MQP — don't over-invest in these; a crisp definition is enough.
Thermal Properties chapter spans both Section A (2 VSAQs) and Section B (1 SAQ) — high marks per hour of preparation.