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Path to 300

Path to 300 / Physics only

Physics · 300 plan

Mechanics is still the largest bank. Optics + EMI/AC + Thermo are the next 40. Modern Physics = high accuracy, low time.

Floor 88Target 100Stretch 108Time ~33%
OverviewMathematicsPhysicsChemistry
88Floor

Must bank

100Target

For 300

108Stretch

After floors

Non-negotiables

Rotation & energy constraintsRay + wave opticsEMI/AC phasorsThermo cycles

Physics issues for 300 are usually rotation/energy process slips and EMI/AC under-prep — not ‘lack of reading’. Mechanics share cooled but absolute count remains highest; Optics and EMI/AC are sticky separators.

Of 100 marks

Topic budgets

Physics hub →
Physhare

Mechanics

Share 32.3% · target ~33.5 marks

Open topic coverage →
TopicFloorTarget
Mechanics
Rotation · Mixed
2533.5Open →
Optics
Ray Optics · Wave Optics
9.813Open →
Thermodynamics/Kinetic Theory
Thermo · Kinetic Theory
8.511.3Open →
Electrostatics
Capacitance/Field
7.810.4Open →
Waves/SHM/Sound
Waves/Sound · SHM
7.510Open →
Magnetism/EMI/AC
EMI/AC · Magnetism
7.39.7Open →
Modern Physics
Atoms/Nuclear/Photoelectric
56.7Open →
Current Electricity
Circuits
2.63.3Open →
Fluid/Properties of Matter
Fluids
22.1Open →
Mark leaks

Top 3 issues + solutions

Issue 01critical10–18 of Physics 100

Rotation & rolling: concept OK, process fails

Rotation marks vanish when the idea is known but the process is sloppy: wrong point for torque, mixing spin ω with orbital ω, friction direction guessed. Advanced loves rolling + relative rotation — checklist beats memory.

How to fix it

Rotation marks vanish when the idea is known but the process is sloppy: wrong point for torque, mixing spin ω with orbital ω, friction direction guessed. Advanced loves rolling + relative rotation — checklist beats memory.

How it looks in the paper

  • Disks rolling on a large disk / relative angular velocity
  • Cylinder rolling off an edge; loss of contact speed
  • Energy + angular momentum about a moving point

Symptom

Know I and τ formulas; wrong point / wrong friction / mix spin vs orbital ω (classic Adv trap).

Root cause

Not drilling constraint bookkeeping; over-reliance on memorised special cases.

Issue 02high8–12

EMI/AC avoided until ‘later’

EMI/AC rose in recent papers. If your comfort zone is only Mechanics + Electrostatics, you will donate 8–12 marks. Mutual inductance and LCR need scheduled practice, not ‘later’.

How to fix it

EMI/AC rose in recent papers. If your comfort zone is only Mechanics + Electrostatics, you will donate 8–12 marks. Mutual inductance and LCR need scheduled practice, not ‘later’.

How it looks in the paper

  • Nested coils / mutual M and effective L for resonance
  • AC LCR phasor numericals
  • Flux and induced emf with Lenz direction MC

Symptom

Comfortable electrostatics; freeze on mutual inductance / LCR / phasors.

Root cause

Rising recent weight ignored because older mocks felt Mechanics-heavy.

Issue 03medium4–8

Optics graphs / medium-lens sign errors

Optics errors are often sign/plot errors: lens in a liquid, power vs n_L graphs, interference path difference. Formula recall is not enough — you must predict how the answer option looks.

How to fix it

Optics errors are often sign/plot errors: lens in a liquid, power vs n_L graphs, interference path difference. Formula recall is not enough — you must predict how the answer option looks.

How it looks in the paper

  • Double convex lens in liquid; power changes sign when n_L crosses n_glass
  • Wave optics path difference / fringe MC
  • Graph options for P vs n_L

Symptom

Formula recall fine; plot options and n_liquid cases go wrong.

Root cause

Little practice reading option graphs; sign of power when n_medium changes.

Keep it short

7-day sprint

D1Rotation checklist + 6 rolling Q
D2EMI mutual inductance pack
D3Optics sign/graph set
D4Thermo cycle tables ×4
D5Physics timed sectional
D6Only Physics error-log repairs

Matching days from weekly template

  • Tue: Physics Mechanics/Rotation + EMI/AC MC
  • Fri: Optics/Modern + Organic sequences
Practice

Mixed joins

All mixed →

Rolling disks + relative rotation on a large disk

2026 · P1 · Q1

Mechanics – RotationRolling without slippingRelative angular motion

Mutual inductance + LC resonance

2026 · P1 · Q2

EMI – Mutual inductanceAC / LC circuitsEffective inductance
Next

Switch when ready

Mathematics planChemistry planPhysics topics

Portions: Mechanics · Optics · Thermodynamics/Kinetic Theory · Electrostatics · Waves/SHM/Sound · Magnetism/EMI/AC · Modern Physics · Current Electricity · Fluid/Properties of Matter