Astronomy Notes for Class 11-12 Explain the mystery of the origin of our universe From the beginning of recorded history, it is seen humans expressed different theoretical notions about the origin and fate of our universe. At present, this branch of science is called cosmology. The branch of physics which discusses the nature, source, and … Read more
Atomic Model and Nuclear Physics
Introduction to Modern Physics for Class 11 -12 Frame of Reference The coordinate system in a three dimensional space with respect to which we can describe the motion of an object is called frame of reference. Inertial Frame of Reference The frame of references moving with constant velocity to each other in which Newton’s law … Read more
Physical Optics Notes for Class 11 – 12 Poynting vector The amount of energy passing through unit area placed perpendicular to direction of a electromagnetic wave propagating is called poynting vector. Wave front At any moment, locus of particles on a wave which are in phase is called wave front. Plane wave front Locus of … Read more
Geometrical Optics Notes for Class 11 – 12 Optical path The path traversed by light in a vacuum at a particular time which is taken by the light to travel a particular distance in any other medium is called an optical path. Fermat’s Principle When a light ray traverses from one point to other after … Read more
Magnetic Effects of Electric Current and Magnetism Notes for Class 11 – 12 Ampere’s Law The line integral of the magnetic field in a continuous closed path or loop is µ₀ times the total electric current passed in the region enclosed by the path. Tesla When 1 coulomb of charge moves at a velocity of … Read more
Electromagnetic Induction and Alternating Current Notes for Class 11 – 12 Learning Outcomes Electromagnetic Induction Generating Electricity with Magnet Induced Electromotive Force Faraday’s Laws of Electromagnetic Induction Lenz’s Law Lenz’s Law and Conservation of Energy Self Induction and Mutual Induction Generating Alternating Current Root Mean Square Value, Peak Value, and Current Electromagnetic Induction The process … Read more
Current Electricity Notes for Class 11 – 12 Ohm’s law Electricity flows when there is a potential difference between the ends of a conductor. In 1877 German scientist George Simon Ohm carried out an experiment on how electricity. Resistance The property of a conductor which opposes the flow of current is called the resistance of … Read more