Chapter 21 Dual Nature of Radiation and Matter free study material by TEACHING CARE online tuition and coaching classes Electric Discharge Through Gases. At normal atmospheric pressure, the gases are poor conductor of electricity. If we establish a potential difference (of the order of 30 kV) between two electrodes placed in air at […]
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Chapter 20 Wave Optics free study material by TEACHING CARE online tuition and coaching classes
Chapter 20 Wave Optics free study material by TEACHING CARE online tuition and coaching classes Light Propagation. Light is a form of energy which generally gives the sensation of sight. (1) Different theories Newtons corpuscular theory Huygen’s wave theory Maxwell’s EM wave theory Einstein’s quantum theory de-Broglie’s dual theory of light […]
Chapter 19 Optical Instruments free study material by TEACHING CARE online tuition and coaching classes
Chapter 19 Optical Instruments free study material by TEACHING CARE online tuition and coaching classes Human Eye. Eye lens : Over all behaves as a convex lens of m = 437 Retina : Real and inverted image of an object, obtained at retina, brain sense it Yellow spot : It is the most […]
Chapter 18 Ray Optics Part 2 (Refraction of Light) free study material by TEACHING CARE online tuition and coaching classes
Chapter 18 Ray Optics Part 2 (Refraction of Light) free study material by TEACHING CARE online tuition and coaching classes The bending of the ray of light passing from one medium to the other medium is called refraction. Snell’s law The ratio of sine of the angle of incidence to the angle of refraction […]
Chapter 17 Ray Optics Part 1 (Reflection of Light) free study material by TEACHING CARE online tuition and coaching classes
Chapter 17 Ray Optics Part 1 (Reflection of Light) free study material by TEACHING CARE online tuition and coaching classes When a ray of light after incidenting on a boundary separating two media comes back into the same media, then this phenomenon, is called reflection of light. Þ ∠i = ∠r […]
Chapter 16 Electromagnetic Waves free study material by TEACHING CARE online tuition and coaching classes
Chapter 16 Electromagnetic Waves free study material by TEACHING CARE online tuition and coaching classes Maxwell’s Contribution. (1) Ampere’s Circuital law According to this law the line integral of magnetic field along any closed path or circuit is m0 times the total ® ® current threading the closed […]
Chapter 15 Heating and chemical effect of current free study material by TEACHING CARE online tuition and coaching classes
Chapter 15 Heating and chemical effect of current free study material by TEACHING CARE online tuition and coaching classes Joules Heating. When some potential difference V is applied across a resistance R then the work done by the electric field on charge q to flow through the circuit in time t will […]
Chapter 14 Magnetism and Matter free study material by TEACHING CARE online tuition and coaching classes
Chapter 14 Magnetism and Matter free study material by TEACHING CARE online tuition and coaching classes The molecular theory of magnetism was given by Weber and modified later by Ewing. According to this theory. Every molecule of a substance is a complete magnet in itself. However, in an magnetised substance the molecular magnets are […]
Chapter 13 Moving Charge and Magnetism ( Magnetic effects of Current Part 3) free study material by TEACHING CARE online tuition and coaching classes
Chapter 13 Moving Charge and Magnetism ( Magnetic effects of Current Part 3) free study material by TEACHING CARE online tuition and coaching classes Motion of Charged Particle in a Magnetic Field. If a particle carrying a positive charge q and moving with velocity v enters a magnetic field B then it experiences […]
Chapter 12 Moving Charge and Magnetism ( Magnetic effects of Current Part 2) – Physics free study material by TEACHING CARE online tuition and coaching classes
Chapter 12 Moving Charge and Magnetism ( Magnetic effects of Current Part 2) – Physics free study material by TEACHING CARE online tuition and coaching classes Amperes Law. Amperes law gives another method to calculate the magnetic field due to a given current distribution. Line integral of the magnetic field B around […]