Uncategorized

Introduction to Simple Harmonic Motion- Lecture Video ← Back https://vimeo.com/514975913

Periodic Motion:  (i) When a body moves on a definite path and repeats its motion again and again after a definite interval of time, then its motion is called periodic motion.  The constant time interval after which it repeats its motion called its time period of motion, T.          Example : Motion of earth around … Read more

Contents Planck’s Quantum Theory of Radiation Properties of photons Video lecture on Quantum Theory Numerical Problems on Quantum Theory of Radiation. Planck’s Quantum Theory of Radiation By the end of 19th century, although Maxwell’s theory of Electromagnetic wave successfully explained the phenomena like interference, diffraction, polarization etc., it failed to explain various other phenomena like … Read more

            REFRACTION AT PLANE SURFACE The phenomenon of change in path of light as it goes from one medium to another is called refraction. Laws of refraction The incident ray, the refracted ray and the normal to the surface separating to two media at the point of incidence – all lie in one plane. Snell’s … Read more

Contents Interference of light Conditions for Maxima and Minima Young’s Double Slit Experiment Numerical Examples INTERFERENCE OF LIGHT When two waves of same frequency and almost of same intensity (same amplitude) propagate in same direction, the intensity of resultant beam alternatively becomes maximum and minimum at different points in space. This phenomenon is called interference.  … Read more

Table of Contents Wave Fronts and its Characteristics Huygen’s Principle Refraction of plane wave at plane surface Reflection of plane wave at plane surface Applications of Huygen’s Principle Optical path length and Geometrical path length. Wave Fronts and its Characteristics Wave Front:  A locus of points, which oscillate in phase is called a wavefront; thus … Read more