ਕਿਰਿਆ ਦੀ ਪਰਿਭਾਸ਼ਾ ਅਤੇ ਕਿਸਮਾਂ
ਕਿਰਿਆ ਦੀ ਪਰਿਭਾਸ਼ਾ ਅਤੇ ਕਿਸਮਾਂ ਅਸੀਂ ਹਰੇਕ ਨੂੰ ਕਿਸੇ ਨਾ ਕਿਸੇ ਕੰਮ ਵਿੱਚ ਰੁੱਝੇ ਹੋਏ ਵੇਖਦੇ ਹਾਂ । ਕੋਈ ਖਾਂਦਾ ਹੈ, ਕੋਈ ਪੀਂਦਾ ਹੈ, ਕੋਈ ਸੌਂਦਾ ਹੈ । ਇਸੇ ਤਰ੍ਹਾਂ…
Chapter 14: Semiconductor Electronics
Class 12 Physics Notes - Chapter 14: Semiconductor Electronics 1. Classification of Metals, Conductors and Semiconductors Based on the relative values of electrical conductivity (σ) or resistivity (ρ), solids are…
Chapter 13: Nuclei
Class 12 Physics Notes - Chapter 13: Nuclei 1. Atomic Masses and Composition of Nucleus The nucleus is situated at the centre of the atom and contains protons and neutrons.…
Chapter 12: Atoms
Class 12 Physics Notes - Chapter 12: Atoms 1. Introduction & Early Models of Atom The first model of the atom was proposed by J.J. Thomson in 1898. According to…
Chapter 11: Dual Nature of Radiation and Matter
Class 12 Physics Notes - Chapter 11: Dual Nature of Radiation and Matter 1. Electron Emission In metals, the outer electrons (valence electrons) are loosely bound to the atoms and…
Chapter 10: Wave Optics
Class 12 Physics Notes - Chapter 10: Wave Optics 1. Introduction & Huygens Principle In 1678, the Dutch physicist Christiaan Huygens put forward the wave theory of light. According to…
Chapter 9: Ray Optics and Optical Instruments
Class 12 Physics Notes - Chapter 9: Ray Optics and Optical Instruments 1. Reflection of Light by Spherical Mirrors Light travels in a straight line, but when it strikes a…
Chapter 8: Electromagnetic Waves
Class 12 Physics Notes - Chapter 8: Electromagnetic Waves 1. Displacement Current According to Ampere's circuital law, the line integral of the magnetic field is equal to μ0 times the…
Chapter 7: Alternating Current
Class 12 Physics Notes - Chapter 7: Alternating Current 1. Introduction to Alternating Current An alternating voltage (AC voltage) is a voltage that varies sinusoidally with time. When such a…
Chapter 6: Electromagnetic Induction
Class 12 Physics Notes - Chapter 6: Electromagnetic Induction 1. Introduction to Electromagnetic Induction The phenomenon of generating electric current in a circuit by changing the magnetic flux linked with…