Class 11 Physics - All chapter Derivations

PDF · Class 11 · Physics · Notes · 20 pages

Comprehensive Derivations for Class 11 Physics. All the important CBSE Class XI derivations, chapter by chapter, with every step worked out and every final result boxed. Each result has been verified, and 12 formula errors found in the original material have been corrected. Units & Measurements: dimensional-analysis derivations (time period of a pendulum, frequency of a vibrating string, period of a planet) Motion in a Straight Line: the three equations of motion by calculus Motion in a Plane: parallelogram law of vector addition, projectile motion (time of flight, range, maximum height, trajectory, horizontal projectile), centripetal acceleration Laws of Motion: momentum conservation, motion of a cyclist and a horse–cart system, banking of roads, friction, apparent weight in a lift, pulley systems, motion on an incline Work, Energy & Power: work–energy theorem, spring potential energy, conservation of energy, elastic and inelastic collisions System of Particles & Rotational Motion: centre of mass, moment of inertia, torque, angular momentum, rolling motion Mechanical Properties of Fluids: pressure and depth, Pascal’s law, continuity equation, Bernoulli’s theorem, surface tension and capillary rise, viscosity and terminal velocity Thermal Properties of Matter: relations between the coefficients of expansion (β = 2α, γ = 3α) Thermodynamics: Mayer’s relation, work done in isothermal and adiabatic processes, efficiency of a Carnot engine Kinetic Theory of Gases: pressure of an ideal gas, law of equipartition of energy, ratio of specific heats, mean free path Oscillations: SHM (displacement, velocity, acceleration, energy), simple pendulum, spring–mass systems, springs in series and parallel Waves: wave equation, speed of sound, standing waves, organ pipes, beats Gravitation: acceleration due to gravity and its variation with height and depth, gravitational potential, satellites, escape velocity, Kepler’s laws