Physics · Class 11
Manthika Physics · Class 11 · CBSE
3 of 14 chapters on the siteThe promise
A Class 11 or 12 student with no coaching class can learn every syllabus topic from this book alone, well enough for the board exam and for the JEE or NEET questions built on it.
That means the explaining is done here, on the page. Each chapter opens where you are, builds the idea step by step, and shows worked examples before it sets you a problem. Every printed problem is solved in the back, with hints. No teacher, no tuition class and no second book is assumed anywhere in it.
Physics, Class 11, on the 2026–27 CBSE syllabus.
Topic list & syllabus map
Units and Measurement
- need for measurement
- units
- systems of units
- SI units
- fundamental and derived units
- significant figures
- determining the uncertainty in result
- dimensions of physical quantities
- dimensional analysis and its applications
Motion in a Straight Line
- frame of reference
- elementary concepts of differentiation and integration for describing motion
- uniform and non-uniform motion
- average speed
- average velocity
- instantaneous velocity
- uniformly accelerated motion
- velocity-time and position-time graphs
- relations for uniformly accelerated motion (graphical and calculus treatment)
Motion in a Plane
- scalar and vector quantities
- position and displacement vectors
- general vectors and notation
- equality of vectors
- multiplication by a real number
- addition and subtraction
- unit vector
- resolution in a plane
- rectangular components
- scalar and vector product of vectors. Motion in a plane under uniform velocity and uniform acceleration — projectile motion
- uniform circular motion
Laws of Motion
- intuitive concept of force
- inertia
- Newton's first law
- momentum and Newton's second law
- impulse
- Newton's third law. Conservation of linear momentum and its applications. Equilibrium of concurrent forces
- static and kinetic friction
- laws of friction
- rolling friction
- lubrication. Dynamics of uniform circular motion: centripetal force
- vehicle on a level circular road
- vehicle on a banked road
Work, Energy and Power
- work by a constant force and a variable force
- kinetic energy
- work-energy theorem
- power. Potential energy
- potential energy of a spring
- conservative and non-conservative forces
- motion in a vertical circle
- elastic and inelastic collisions in one and two dimensions
Rotational Motion
- centre of mass of a two-particle system
- momentum conservation and CM motion
- centre of mass of a rigid body and of a uniform rod. Moment of a force
- torque
- angular momentum
- conservation of angular momentum and its applications. Equilibrium of rigid bodies
- rigid body rotation and equations of rotational motion
- comparison of linear and rotational motion. Moment of inertia
- radius of gyration
- values of moment of inertia for simple geometrical objects (no derivation)
Gravitation
- Kepler's laws of planetary motion
- universal law of gravitation. Acceleration due to gravity and its variation with altitude and depth. Gravitational potential energy and gravitational potential
- escape speed
- orbital velocity of a satellite
- energy of an orbiting satellite
Properties of Solids
- elasticity
- stress-strain relationship
- Hooke's law
- Young's modulus
- bulk modulus
- shear modulus of rigidity (qualitative idea only)
- Poisson's ratio
- elastic energy. Application of elastic behaviour of materials (qualitative idea only)
Properties of Fluids
- pressure due to a fluid column
- Pascal's law and its applications (hydraulic lift, hydraulic brakes)
- effect of gravity on fluid pressure. Viscosity
- Stokes' law
- terminal velocity
- streamline and turbulent flow
- critical velocity
- Bernoulli's theorem and its simple applications (Torricelli's law, dynamic lift). Surface energy and surface tension
- angle of contact
- excess pressure across a curved surface
- application of surface tension ideas to drops
- bubbles and capillary rise
Thermal Properties
- heat
- temperature
- thermal expansion of solids
- liquids and gases
- anomalous expansion of water
- specific heat capacity
- Cp
- Cv
- calorimetry
- change of state
- latent heat. Heat transfer — conduction
- convection
- radiation
- thermal conductivity
- qualitative ideas of blackbody radiation
- Wien's displacement law
- Stefan's law
Thermodynamics
- thermal equilibrium and definition of temperature
- zeroth law
- heat
- work
- internal energy. First law of thermodynamics. Second law: thermodynamic state variable and equation of state. Change of condition of gaseous state — isothermal
- adiabatic
- reversible
- irreversible
- cyclic processes
Kinetic Theory
- equation of state of a perfect gas
- work done in compressing a gas. Kinetic theory assumptions
- concept of pressure. Kinetic interpretation of temperature
- rms speed
- degrees of freedom
- law of equipartition of energy (statement only) and its application to specific heat capacities
- concept of mean free path
- Avogadro's number
Oscillations
- periodic motion — time period
- frequency
- displacement as a function of time
- periodic functions. Simple harmonic motion
- uniform circular motion and its equations of motion
- phase
- oscillations of a loaded spring — restoring force and force constant
- energy in SHM (kinetic and potential)
- simple pendulum — derivation of the expression for its time period
Waves
- wave motion — transverse and longitudinal waves
- speed of a travelling wave
- displacement relation for a progressive wave
- principle of superposition
- reflection of waves
- standing waves in strings and organ pipes
- fundamental mode and harmonics
- beats
What it is — and isn't
It follows the CBSE Physics syllabus for 2026–27 chapter by chapter, in NCERT's order. Each chapter teaches its idea from the beginning, shows worked examples before it sets a problem, names the mistakes students actually make. Every printed problem is solved in the back, with hints, beside a glossary and the reference pages the subject needs.
What it is not: an NCERT solutions book — it solves its own problems only; a sample-paper or previous-year-paper bank; a coaching module or test series; a CBSE or NCERT publication; the school — no lab work, projects or internal-assessment help. Nor is it a JEE Advanced or NEET-level problem book — the ceiling is NCERT plus the entrance-exam application tier — a formula-sheet crammer, or a bridge course from the previous class beyond its assumed-skills page.
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