Physics +2 2nd Year Syllabus

With current electricity and magnetism, atomic physics & nuclear physics Preparation...

Course Structure

SL-NO THEORY PAPER MARKS
1 Objective 20
2 Short answer type 29
3 Long type 21
Total 70

What you will learn

UNIT- I : ELECTROSTATICS, CURRENT ELECTRICITY AND MAGNETISM:

I (A) 1. ELECTROSTATICS. (8 classes)

Electric charge and its quantization. Coulomb’s law: force between two point charges. Electric permittivity, field & field lines, electric field due to a point charge, field due to a dipole at an axial and equatorial point. Torque on a dipole in a uniform electric field. Electric flux, Gauss’s law and its application to uniformly charged infinite plane sheet. Derivation of Coulomb’s law from Gauss’s law.

2. ELECTRIC POTENTIAL (4 classes)

Electric potential, potential difference, electric potential due to a point charge , potential due to a dipole at both axial and equatorial point. Electrical potential energy of a point charge in an electrostatic field. Electron volt. Relation between electric field and potential difference.

3. CAPACITANCE (4 classes)

Capacitance and capacitors, capacitance of an isolated sphere, parallel plate capacitor, combinations of capacitors in series and in parallel. Dielectric and electric polarization. Capacitance of a parallel plate capacitor with a dielectric medium between the plates. Energy stored in a capacitor.

I (B) CURRENT ELECTRICITY AND MAGNETISM 4. ELECTRIC CURRENT (8 classes)

Electric current, drift velocity and mobility and their relation with electric current. Current density, relation between current density and electric field intensity. Ohm’s law, resistance, conductance, resistivity and conductivity, V-I graph (ohmic and non-ohmic), effect of temperature on resistance. EMF and potential difference, internal resistance of a cell, combination of cells in series and parallel. Combinations of resistances in series and parallel. Kirchhoff’s laws and application to Wheatstone bridge.

5. THERMAL EFFECT OF CURRENT (2 classes) Heating effect of electric current, Joule’s law of heating. Electrical energy and power. Killo-watt Hour. 6. MAGNETISM (7 classes)

Concept of magnetic field, magnetic field intensity due to a magnetic dipole ( bar magnet) at end-on and broad-side –on –position. Magnetic lines of force, field induction B, magnetic field intensity H, intensity of magnetization, susceptibility, permeability. Qualitative idea of para-,dia- and ferromagnetism. Magnetic elements of earth.

UNIT- II : MAGNETIC EFFECT OF CURRENT, ELECTRO-MAGNETIC INDUCTION, ALTERNATING CURRENT, ELECTRONICS, ELECTROMAGNETIC WAVE & SPACE COMMUNICATION.:

II (A) 1. MAGNETIC EFFECT OF ELECTRIC CURRENT (7 classes)

Biot-Savart law, magnetic field at the centre and on the axis. Force on a charged particle moving in uniform magnetic field and electric field. Force on a current carrying conductor in a uniform magnetic field, force between two parallel current carrying conductors, definition of ampere. Torque experienced by a current loop in an external magnetic field, moving coil dead beat galvanometer, conversion of galvanometer to ammeter and voltmeter.

2. ELECTROMAGNETIC INDUCTION (4 classes)

Induced emf, Faraday’s law of electromagnetic induction, Lenz’s law, eddy currents. Self and mutual inductance, emf induced in a rotating coil in uniform magnetic field.

3. ALTERNATING CURRENT (5 classes)

Alternating current, average, peak and rms value of alternating current and voltage. A.C circuits containing resistance only, capacitance and inductance only, phasor diagram. Power in A.C circuits, wattles & current. Principle and uses of Transformer.

II (B) ELECTRONICS 4. VACUUM TUBES (3 classes)

Thermionic emission, idea of work function, statement of Richardson’s and Child’s law, vacuum diode and triode; their construction, action and characteristics, relation among valve constants.

5. SOLIDS AND SEMICONDUCTOR DEVICES (10 classes)

Energy band in solids, difference between metals, semiconductors and insulators on the basis of energy band theory, intrinsic and extrinsic semiconductors, p-type and n-type, p-n junction, forward and reverse biasing of a junction, characteristics of p-n junction, junction diode as a half and full wave rectifier, efficiency of half and full wave rectifier, Transistor, n-p-n and p-n-p transistor, transistor configurations (CB and CE mode), input and out put characteristics of a transistor. Elementary idea about decimal and binary number system (no conversion). Logic gates: OR, AND, NOT, NAND and NOR, their symbol and truth table. Circuit of only OR and AND gates.

6. ELECTROMAGNETIC WAVE (2 classes)

Qualitative idea about nature of electromagnetic wave, electromagnetic spectrum (radio waves, microwaves, infrared, visible, x-ray, gamma ray) including elementary idea about their uses.

7. SPACE COMMUNICATION. (3 classes)

Need of modulation, Qualitative idea about amplitude and frequency modulation & detection. Space communication: sky and space wave propagation. Satellite communication.

UNIT- III : OPTICS, ATOMIC PHYSICS & NUCLEAR PHYSICS.:

III (A) OPTICS: 1. REFLECTION AND REFRACTION OF LIGHT (8 classes)

Reflection of light, reflection by spherical mirrors, mirror formula, lateral and longitudinal magnification, laws of refraction of light, refractive index and its relation with velocity of light, critical angle total internal reflection and its uses. Refraction at a spherical surface, thin lens formula, lens maker’s formula, magnifying power of lenses, two thin lenses in contact.

2. REFRACTION TGROUGH A PRISM AND OPTICAL INSTRUMENTS. (5 classes)

Refraction through a prism, I-D curve and expression for refractive index of the material of the prism. Dispersion produced in a prism. Optical instruments: magnifying glass, compound microscope, astronomical telescope and their magnifying powers.

3. WAVE OPTICS (5 classes)

Wave optics: wave front, Huygene’s principle, interference of light, coherent sources, conditions of interference, idea of path difference, Young’s double slit experiment and expression for fringe width.

III (B) 4. ATOMIC PHYSICS (8 classes)

Rutherford’s model of atom and its limitations, Bohr’s atomic model, expression for radius of nth orbit and energy in the nth orbit, hydrogen spectra, energy level diagram. Photoelectric effect, laws of photoelectric effect, Einstein’s photoelectric equation, idea of work function, applications of photoelectric effect. Dual nature of radiation and matter. Matter waves, de Broglie wavelength.

5. NUCLEAR PHYSICS (7 classes)

Atomic nucleus, its composition, size, nuclear mass. Isotopes, isobars and isotones. Nature of nuclear force. Mass defect, Mass energy equivalence relation(E= mc2). Binding energy per nucleon and its variation with mass number, nuclear reaction, nuclear fusion, nuclear fission. Cyclotron. Radioactivity (natural), properties of alpha, beta and gamma rays. Decay laws, half life and decay constant.