Physics for IMU-CET 2026: Complete Preparation Guide

Physics carries 50 marks in IMU-CET and is often the deciding factor between selection and rejection. This comprehensive guide covers everything you need to score 40+ marks in the physics section.

Physics Section Overview

Exam Pattern

Aspect	Detail
Total Questions	50
Marks per Question	1
Negative Marking	-0.25 per wrong answer
Time Allocation	30-35 minutes recommended
Difficulty Level	Class 11-12 CBSE/State Board

Topic-wise Distribution

Topic	Expected Questions	Weightage
Mechanics	15-18	30-36%
Heat & Thermodynamics	6-8	12-16%
Waves & Oscillations	5-7	10-14%
Electricity & Magnetism	10-12	20-24%
Optics	5-6	10-12%
Modern Physics	4-6	8-12%

Chapter-wise Preparation

1. Mechanics (Most Important)

Units and Measurements

Key Concepts:

• Dimensional analysis
• Significant figures
• Error analysis
• SI units and conversions

Important Formulas:

Physical Quantity	Dimensional Formula
Force	[MLT⁻²]
Work/Energy	[ML²T⁻²]
Power	[ML²T⁻³]
Pressure	[ML⁻¹T⁻²]
Momentum	[MLT⁻¹]

Previous Year Pattern: 2-3 questions on dimensional analysis

Kinematics

Topics to Cover:

• Motion in straight line
• Motion in plane
• Projectile motion
• Relative motion

Essential Equations:

Motion Type	Equations
Uniform	s = vt
Uniformly Accelerated	v = u + at, s = ut + ½at², v² = u² + 2as
Projectile (Max Height)	H = u²sin²θ/2g
Projectile (Range)	R = u²sin2θ/g
Projectile (Time)	T = 2usinθ/g

Tips: Practice numerical problems daily. Most questions are direct formula applications.

Newton’s Laws

Focus Areas:

• Free body diagrams
• Friction (static and kinetic)
• Circular motion
• Banking of roads

Important Formulas:

Concept	Formula
Force	F = ma
Friction	f = μN
Centripetal Force	F = mv²/r
Banking Angle	tanθ = v²/rg

Work, Energy, and Power

Key Topics:

• Work done by various forces
• Kinetic and potential energy
• Conservation of energy
• Power calculations

Formulas:

Quantity	Formula
Work	W = Fs cosθ
Kinetic Energy	KE = ½mv²
Potential Energy	PE = mgh
Power	P = W/t = Fv

Rotational Motion

Topics:

• Moment of inertia
• Torque
• Angular momentum
• Rolling motion

Moment of Inertia Table:

Object	Axis	Formula
Ring	Center	MR²
Disc	Center	½MR²
Solid Sphere	Diameter	⅖MR²
Hollow Sphere	Diameter	⅔MR²
Rod	Center	ML²/12
Rod	End	ML²/3

2. Heat & Thermodynamics

Heat Transfer

Topics:

• Conduction (Fourier’s Law)
• Convection
• Radiation (Stefan’s Law, Wien’s Law)

Key Formulas:

Transfer Mode	Formula
Conduction	Q/t = KA(T₁-T₂)/L
Stefan’s Law	E = σT⁴
Wien’s Law	λₘT = constant

Thermodynamics

Important Topics:

• First Law of Thermodynamics
• Heat engines and efficiency
• Carnot cycle
• Specific heat capacity

Formulas:

Concept	Formula
First Law	Q = ΔU + W
Efficiency	η = 1 - T₂/T₁ (Carnot)
Ideal Gas	PV = nRT
Specific Heat	Q = mcΔT

Process Equations:

Process	Work Done
Isothermal	W = nRT ln(V₂/V₁)
Isobaric	W = PΔV
Isochoric	W = 0
Adiabatic	W = (P₁V₁ - P₂V₂)/(γ-1)

3. Waves & Oscillations

Simple Harmonic Motion

Key Formulas:

Property	Formula
Displacement	x = A sin(ωt + φ)
Velocity	v = Aω cos(ωt + φ)
Acceleration	a = -ω²x
Time Period (Spring)	T = 2π√(m/k)
Time Period (Pendulum)	T = 2π√(L/g)

Wave Motion

Topics:

• Types of waves
• Wave equation
• Superposition
• Standing waves
• Beats

Important Equations:

Property	Formula
Wave Velocity	v = fλ
String Velocity	v = √(T/μ)
Frequency (String)	f = (n/2L)√(T/μ)
Beat Frequency	f_beat =

Sound Waves

Focus Areas:

• Doppler effect
• Resonance
• Intensity and loudness

Doppler Effect Formula: f’ = f(v ± v_o)/(v ∓ v_s)

4. Electricity & Magnetism

Electrostatics

Key Topics:

• Coulomb’s Law
• Electric field
• Electric potential
• Capacitors

Formulas:

Concept	Formula
Coulomb’s Law	F = kq₁q₂/r²
Electric Field	E = kq/r²
Potential	V = kq/r
Capacitance	C = ε₀A/d
Energy (Capacitor)	U = ½CV²

Capacitor Combinations:

Arrangement	Formula
Series	1/C = 1/C₁ + 1/C₂
Parallel	C = C₁ + C₂

Current Electricity

Important Topics:

• Ohm’s Law
• Kirchhoff’s Laws
• Wheatstone Bridge
• Meter Bridge
• Potentiometer

Formulas:

Concept	Formula
Ohm’s Law	V = IR
Resistance	R = ρL/A
Power	P = VI = I²R = V²/R
Series Resistance	R = R₁ + R₂
Parallel Resistance	1/R = 1/R₁ + 1/R₂

EMF and Internal Resistance: V = E - Ir

Magnetism

Topics:

• Magnetic field due to current
• Force on current-carrying conductor
• Electromagnetic induction

Formulas:

Source	Magnetic Field
Straight Wire	B = μ₀I/2πr
Solenoid	B = μ₀nI
Circular Loop	B = μ₀I/2r (at center)

Force and EMF:

Concept	Formula
Force on Wire	F = BIL sinθ
Induced EMF	ε = -dΦ/dt
Motional EMF	ε = BLv

5. Optics

Ray Optics

Topics:

• Reflection and refraction
• Mirrors and lenses
• Optical instruments
• Total internal reflection

Mirror and Lens Formulas:

Formula	Equation
Mirror Formula	1/f = 1/v + 1/u
Lens Formula	1/f = 1/v - 1/u
Magnification (Mirror)	m = -v/u
Magnification (Lens)	m = v/u
Power	P = 1/f (meters)

Lens Maker’s Formula: 1/f = (n-1)(1/R₁ - 1/R₂)

Wave Optics

Topics:

• Interference
• Diffraction
• Polarization

Young’s Double Slit:

• Fringe Width: β = λD/d
• Path Difference (Bright): nλ
• Path Difference (Dark): (2n-1)λ/2

6. Modern Physics

Photoelectric Effect

Key Equations:

Property	Formula
Einstein’s Equation	hf = W + KE_max
Threshold Frequency	f₀ = W/h
Stopping Potential	eV₀ = KE_max

Atomic Physics

Topics:

• Bohr’s model
• Hydrogen spectrum
• X-rays

Bohr’s Model:

Property	Formula
Radius	r_n = n²a₀ (a₀ = 0.529 Å)
Energy	E_n = -13.6/n² eV
Velocity	v_n ∝ 1/n

Nuclear Physics

Topics:

• Radioactive decay
• Nuclear reactions
• Mass-energy equivalence

Formulas:

Concept	Formula
Decay Law	N = N₀e^(-λt)
Half-life	T = 0.693/λ
Mass-Energy	E = mc²
Binding Energy	BE = Δm × 931.5 MeV

Previous Year Analysis

High-Frequency Topics

Topic	Questions/Year	Priority
Newton’s Laws	3-4	Very High
Current Electricity	4-5	Very High
Projectile Motion	2-3	High
Thermodynamics	2-3	High
Ray Optics	3-4	High
Rotational Motion	2-3	Medium
Modern Physics	2-3	Medium

Question Patterns

Type	Percentage
Direct Formula	40%
Numerical	45%
Conceptual	15%

Preparation Strategy

3-Month Plan

Month 1: Foundation

Week	Topics
Week 1	Units, Kinematics
Week 2	Newton’s Laws, Friction
Week 3	Work-Energy-Power
Week 4	Rotational Motion

Month 2: Intermediate

Week	Topics
Week 1	Thermodynamics, Heat
Week 2	Waves, SHM
Week 3	Electrostatics
Week 4	Current Electricity

Month 3: Advanced + Revision

Week	Topics
Week 1	Magnetism, EMI
Week 2	Optics
Week 3	Modern Physics
Week 4	Full Revision + Mock Tests

Daily Study Schedule

Time	Activity
2 hours	Theory + Concepts
1.5 hours	Numerical Practice
30 minutes	Formula Revision

Common Mistakes to Avoid

Calculation Errors

Mistake	Solution
Unit conversion errors	Always convert to SI units
Sign errors in vectors	Draw diagrams clearly
Calculator mistakes	Double-check calculations
Power of 10 errors	Practice scientific notation

Conceptual Errors

Mistake	Correct Understanding
Confusing mass and weight	Weight = mg (varies with g)
Wrong direction of friction	Friction opposes relative motion
Mixing v and u in optics	Follow sign convention strictly

Tips for Exam Day

Time Management

Section	Questions	Time
Easy questions	25-30	15 minutes
Medium questions	15-20	15 minutes
Difficult questions	5-10	5 minutes

Answering Strategy

1. First Pass: Solve all easy questions
2. Second Pass: Attempt medium difficulty
3. Third Pass: Try difficult questions if time permits
4. Never Leave: Intelligent guessing if >60% sure

Negative Marking Strategy

Confidence	Action
75%+ sure	Attempt
50-75% sure	Attempt cautiously
Below 50%	Skip

Recommended Resources

Books

Book	Best For
HC Verma	Concepts + Numericals
NCERT	Foundation
DC Pandey	Practice Problems
Previous Year Papers	Pattern Understanding

Online Resources

Resource	Use
Khan Academy	Concept Videos
YouTube (Physics Wallah)	Problem Solving
SailorGPT	Doubt Solving

Formula Sheet (Quick Revision)

Mechanics

• v = u + at
• s = ut + ½at²
• F = ma
• W = Fs cosθ
• KE = ½mv²
• PE = mgh

Thermodynamics

• Q = mcΔT
• PV = nRT
• η = 1 - T₂/T₁

Electricity

• V = IR
• P = VI
• C = ε₀A/d

Optics

• 1/f = 1/v + 1/u
• n = c/v

Modern Physics

• E = hf
• E = mc²

Conclusion

Physics in IMU-CET requires a balance of conceptual understanding and problem-solving speed. Focus on high-weightage topics like Mechanics and Electricity, practice numerical daily, and maintain a formula sheet for quick revision.

With consistent preparation of 3-4 hours daily for 3 months, scoring 40+ marks in physics is achievable.

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