CBSE Class XI PHYSICS Revision Notes CHAPTER 7 SYSTEM OF PARTICLES AND ROTATIONAL MOTION Centre of mass Moment of a Force Equilibrium of a rigid body Moment of inertia 1. Ideally, a rigid body is one for which the distances between different…Read More »
CBSE Class 11 Physics NCERT SolutionsChapter 7 SYSTEMS OF PARTICLES AND ROTATIONAL MOTION 1. Give the location of the centre of mass of a (i) sphere, (ii) cylinder, (iii) ring, and (iv) cube, each of uniform mass density. Does the centre of mass…Read More »
CBSE Test Paper 01 Chapter 7 System of Particles & Rotational Angular momentum of a body is defined as the product of 1 Linear velocity and angular velocity Mass and angular velocity Centripetal force and radius Moment of inertia and angular velocity A…Read More »
CBSE Class XI PHYSICS Revision NotesCHAPTER 8GRAVITATION Kepler’s laws, Universal law of gravitation Acceleration due to gravity Gravitational potential energy Escape Velocity, Orbital Velocity, Geostationary and polar satellites Kepler’s law of planetry motion (a) Kepler’s first law (law of orbit): Every planet…Read More »
CBSE Class 11 Physics NCERT SolutionChapter 8Gravitation 1. Answer the following: (a) You can shield a charge from electrical forces by putting it inside a hollow conductor. Can you shield a body from the gravitational influence of nearby matter by putting it…Read More »
CBSE Test Paper 01 Chapter 8 Gravitation The direction of the universal gravitational force between particles of masses m1m1 and m2m2 is: 1 towards m1m1 towards m2m2 on m1m1 and towards m1m1 on m2m2. towards the center of the earth towards m2m2 The space shuttle releases a 470-kg communications satellite while in an orbit that is…Read More »
CBSE Class XI PHYSICS Revision NotesCHAPTER 9MECHANICAL PROPERTIES OF SOLIDS Elastic behaviour of solids Stress and strain Hooke’s law Young’s modulus, bulk modulus, shear modulus of rigidity Poisson’s Ratio, Elastic Energy Deforming Force : A force which produces a change in configuration of…Read More »
CBSE Class 11 Physics NCERT SolutionsChapter 9MECHANICAL PROPERTIES OF SOLIDS 1. A Steel wire of length 4.7 m and the cross-sectional area of stretches by the same amount as a Copper wire of length 3.5 m and the cross-sectional area of under a given…Read More »
CBSE Test Paper 01 Chapter 9 Mechanical Properties of Solids A solid brass sphere is initially surrounded by air, and the air pressure exerted on it is 1.0 ×× 105105 N/ m2m2 (normal atmospheric pressure). The sphere is lowered into the ocean to a depth at which the…Read More »
CBSE Class 11 PHYSICS Revision NotesCHAPTER 10MECHANICAL PROPERTIES OF FLUIDS Pressure, Pascal’s Law, Effects of gravity on fluid pressure Viscosity, Stokes’ law, velocity, streamline and turbulent flow Bernoulli’s theorem and its applications Surface energy and surface tension Fluids : Fluids are those substances which…Read More »
