Wave Optics Class 12 Notes Chapter 10 1. Wave Optics Describes the connection between waves and rays of light. According to wave theory of light, light is a form of energy which travels through a medium in the form of transverse wave. 2. Wave front The locus of all those particles which are vibrating in the same phase at any instant is called wave front. Thus, wave front is a … [Read more...]
Moving Charges and Magnetism Class 12 Notes Chapter 4
Moving Charges and Magnetism Class 12 Notes Chapter 4 1. The space in the surroundings of a magnet or a current-carrying conductor in which its magnetic influence can be experienced is called magnetic field. Its SI unit is Tesla (T). 2. Oersted experimentally demonstrated that the current-carrying conductor produces magnetic field around it. When key K is closed, then … [Read more...]
Current Electricity Class 12 Notes Chapter 3
Current Electricity Class 12 Notes Chapter 3 1. The directed rate of flow of electric charge through any cross-section of a conductor is known as electric current. If ∆Q charge flows in time ∆t, then current at any time t is NOTE: Current is a scalar quantity. I is in the direction of flow of positive charge and opposite to the direction of flow of negative charge. SI … [Read more...]
Electric Charges and Fields Class 12 Notes Chapter 1
Electric Charges and Fields Class 12 Notes Chapter 1 1. Electric Charge Charge is the property associated with matter due to which it produces and experiences electric and magnetic effect. 2. Conductors and Insulators Those substances which readily allow the passage of electricity through them are called conductors, e.g. metals, the earth and those substances which offer high … [Read more...]
Electrostatic Potential and Capacitance Class 12 Notes Chapter 2
Electrostatic Potential and Capacitance Class 12 Notes Chapter 2 1. Electrostatic Potential The electrostatic potential at any point in an electric field is equal to the amount of work done per unit positive test charge or in bringing the unit positive test charge from infinite to that point, against the electrostatic force without acceleration. NOTE: Electrostatic … [Read more...]