Class XII

Physics Syllabus 

Electric Charges: conservation of charge, Coulomb’s law-force between two point charges, forces between multiple charges; Superposition Principle and continuous charge distribution. Electric field, electric field due to point charge, electric field lines; electric dipole, electric field due to a dipole; torque on a dipole in a uniform electric field. Electric flux, statement of Gauss’s theorem and its application to find field due to infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell (field inside and outside). Electric potential, potential difference, electric potential due to a point charge, a dipole and system of charges; equipotential surfaces, electrical potential energy of a system of two point charges and of electric dipole in an electrostatic field. Conductors and insulators, free charges and bound charges inside a conductor. Dielectrics and electric polarisation, capacitors and capacitance, combination of Capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor. Van de Graaff generator.
Electric current, flow of electric charges in a metallic conductor, drift Velocity, mobility and their relation with electric current; Ohm’s law, electrical resistance, V-I characteristics (linear and non-linear), elecrical energy and power, resistivity and conductivity. Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors, temperature dependence of resistance. Internal resistance of a cell, potential differance and emf of a cell, combination of cells in series and parallel. Elementary idea of secondary cells. Kirchhoff’s law and simple application. Wheatstone’s bridge, meter bridge. Potentiometer-principle and its applications to measure potential difference and for comparing emf of two cells; measurement of internal resistance of a cell.
Concept of magnetic field, Oersted’s experiment. Biot-Savart law and its application to current carrying circular loop. Ampere’s law and its applications to infinitely long straight wire, straight and toroidal solenoids. Force on a moving charge in uniform magnetic and electric fields. Cyclotron. 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 a uniform magnetic field; moving coil galvanometer-its current sensitivity and conversion to ammeter and voltmeter. Current loop as a magnetic dipole and its magnetic dipole moment. Magnetic dipole moment of a revolving electron. Magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis. Torque on a magnetic dipole (bar magnet) in a uniform magnetic field; bar magnet as an equivalent solenoid, magnetic field lines. Earth’s magnetic field and magnetic elements; para, dia and ferromagnetic substance, with examples. Electromagnets and factors affecting their strengths, permanent magnets.
Electromagnetic induction; Faraday’s laws, induced emf and current; Lenz’s Law, Eddy currents, self and mutual induction. Alternating currents, peak and rms value of alternating current/voltage; reactance and impedance; LC oscillations (qualitative treatment only), LCR series circuit, resonance; power in AC circuits, wattless current. AC generator and transformer.
Need for displacement current. Electromagnetic waves and their characteristics (qualitative ideas only). Transverse nature of electromagnetic waves. Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses.
Reflection of light, spherical mirrors, mirror formula. Refraction of light, total internal reflection and its applications, optical fibres, refraction at spherical surfaces, lenses, thin lens formula, lens-maker’s formula. Magnification, power of a lens, Combination of thin lenses in contact, combination of a lens and mirror. Refraction and dispersion of light through a prism. Scattering of light-blue colour of the sky and reddish appearance of the sun at sunrise and sunset. Optical instruments: Human eye, image formation, and accommodation, correction of eye defects (myopia, hypermetropia, presbyopia and astigmatism) using lenses. Microscopes and astronomical telescopes reflecting and refracting and their magnifying powers. Wave optics: wave front and Huygen’s principle, reflection and refraction of plane wave at a plane surface using wave fronts. Proof of laws of reflection and refraction using Huygen’s principle. Interferance, Young’s double slit experiment and expression for fringe width, coherent sources and sustained interferance of light. Diffraction due to a single slit, width of central maximum. Resolving power of microscope and astronomical telescope. Polarisation, plane polarised, light; Brewster’s law, uses of plane polarised light and polaroids.
Dual nature of radiation. Photoelectric effect, Hertz Lenard’s observations; Einstein’s photoelectric equation-particle nature of light. Matter waves-wave nature of particles, De Broglie relation. Davisson-Germer experiment (experimental detials should be omitted; only conclusion should be explained).
Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr Model levels, Hydrogen spectrum. Composition and size of nucleus, atomic masses, isotopes, isobars; isotones. Radioactivity-alpha, beta and gamma particles/rays and their properties; radioactive decay law. Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number; nuclear fission and fusion.
Energy bands in solids, conductors, insulators and semiconductors; semiconductor diode- I-V characteristics in forward and reverse bias, diode as a rectifier; I-V characteristics of LED, photodiode, solar cell and Zener diode; Zener diode as a voltage regulator. Junction, transistor action, characteristics of a transistor; transistor as an amplifier (common emitter configuration) and oscillator. Logic gates (OR, AND, NOT, NAND and NOR). Transistor as a switch.
Elements of communication system (block diagram only); bandwidth of signals (speech, TV and digital data); bandwidth of transmission medium. Propagation of electromagnetic waves in the atmosphere, sky and space wave propagation. Need for modulation. Production and detection of an amplitude-modulated wave.

Physics Lessons  

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Chemistry Syllabus 

General charactersitic of solid state, Amorphous and Crystalline solids, classification of crystalline solids, crystal lattices and unit cell, Number of Atom in a unit cell, close packed structures, Packing Efficiency, Calculation Involving unit cell Dimensions, Imperfection in solids, Electrical and Magnetic Properties.
Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, solid solutions, colligative properties – relative lowering of vapour pressure, Raoult’s law, elevation of boiling point, depression of freezing point, osmotic pressure, determination of molecular masses using colligative properties, abnormal molecular mass, van’t Hoff factor and calculations involving it
Electrochemical cells, Galvanic cells, Nernst Equation, Conductance of Electrolytic Solutions, Electrolytic Cells and Electrolysis, Batteries, Fuel cells and corosion.
Rate of a reaction (average and instantaneous), factors affecting rates of reaction : concentration, temperature, catalyst; order and molecularity of reactions; rate law and specific rate constant, integrated rate equations and half-life (only for zero and first order reactions); concept of collision theory (elementary idea, no mathematical treatment), Activation energy, Arrhenious equation.
Adsorption – physisorption and chemisorption; factors affecting adsorption of gases on solids; catalysis : homogeneous and heterogeneous, activity and selectivity : enzyme catalysis; colloidal state; distinction among true solutions, colloidal solutions and suspensions; lyophilic, lyophobic, multimolecular and macromolecular colloids; properties of colloids; Tyndall effect, Brownian movement, electrophoresis, coagulation; emulsion-elements idea of nano materials.
Principles and method of extraction – concentration, oxidation, reduction , Thermodynamic Principles of Metallurgy, Electrochemical principles of Metallurgy and refining, uses of aluminium, copper, zinc and iron.
Group 15 elements : Dinitrogen , Ammonia, Oxides of Nitrogen, Nitric Acid, phosphorus Allotropic Forms, Phosphine, Phosphorus Halides, oxo acid of phosphorus. Group 16 elements : Dioxygen, Simple oxides ozone, sulphur Allotopic Forms, Sulphur Dioxides, Oxoacids of sulphur, Sulphuric acid. Group 17 elements : Chlorine, Hydrogen chloride, oxoacids of halogens, Interhalogen compounds. Group 18 elements : General introduction, electronic configuration. Occurrence, trends in physical and chemical properties, uses.
General introduction, electronic configuration, occurence and characteristics of transition metals, general trends in properties of the first row transition metals – metallic character, ionization enthalpy, oxidation states, ionic radii, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation. Lanthanoids – electronic configuration, oxidation states, chemical reactivity and lanthanoid contraction and its consequences. Actinoids – Electronic configuration, oxidation states and comparison with lanthanoids. Some application d- and f- Block elements.
Werner’s Theory of co-ordination Compound, Difinition of some importnat terms pertaining to Co-ordincation Compounds, Nomenclature of Co-ordination compouds, isomerism in co-ordination compounds, Bonding in metal carbonyl, stability of co-ordination compounds and importance and application of co-ordination compounds.
Haloalkanes : Classification, Nomenclature, nature of C-X bond, Method of preparation of Haloalkanes, physical and chemical properties, mechanism of substitution reactions. Stability of carbocations, R-S and D-L configurations. Haloarenes : Nature of C-X bond, method of preparation of Haloarenes substitution reactions (directive influence of halogen for mono substituted compounds only, stability of carbocations R-S and D-L configurations) Uses and environmental effects of- dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons DDT.
Classification, Nomenclature structures of functional groups, preparations, properties and reaction of alcohol and phenols. Preparation, Physical properties and chemical reactions of Ethers.
Nomenclature and structure of carboyl group, preparation of aldehydes and ketones, physical properties and chemical reactions, uses of aldehydes and ketones. Nomenclature and structure of carboxyl groups – Methods of Preparation of Carboxyclic acids, physical properties and chemical reactions, uses of carboxylic acids.
Structure of Amines, classification and nomenclature of amines, preparation of amines, physical properties and chemical reactions, Methods and preparation of diazonium salts , physical properties, chemical reactions and its importance in synthesis of aromatic compounds.
Carbohydrates : Structure of glucose and fructose, disaccharides, polysaccharides, cellulose and importance of carbohydrates.. Protiens : Aminoacids and its classification, structure of protein and denaturation of protein. Enzymes : Mechanism of Enzyme action. Vitamins : Classification and Importance of Vitamins. Nucleic acids : Chemical compostion, function of nucleic acids. Hormones : Its functions.
Classification of polymers — types of polymerisaton reactions, molecular mass of polymers, biodegradable polymers of commercial importance.
Drugs and their classification, Drug-target interaction, Therapeutic action of differrent classes of drugs, chemicals in food, cleansing agents.

Chemistry Lessons  

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Biology Syllabus 

Chapter 1: Reproduction in Organisms Reproduction, a characteristic feature of all organisms for continuation of species. Modes of reproduction-Asexual and sexual. Chapter 2: Sexual Reproduction in flowering Plants Flower; Pre-fertilisation: Structures and Events; Pollination-types, agencies and examples; Outbreeding devices; Pollen-pistil interaction; Double fertilization; Post fertilisation: structures and Events; Development of endosperm & embryo; Development of seed and formation of seed; Fruit formation; Parthenocarpy, apomixis and polyembryony. Chapter 3: Human Reproduction Male andfemale Reproductive systems; Gametogenesis-spermatogenesis & oogenesis; Menstrual cycle; Fertilization and Implantation; Pregnancy and Embryonic development; Parturition and Lactation. Chapter 4: Reproductive Health Reproductive Health – problems and strategies; Population Explosion and Birth control; Medical termination of Pregnancy; Sexually Transmitted Diseases; Infertility and Assisted reproductive technologies- assisted reproductive technologies – IVF, ZIFT, GIFT (elementary idea for general awareness).
Chapter 5: Principles of Inheritance and Variation Mendel’s Laws of Inheritance; Deviations from Mendelism: Incomplete dominance, Co-dominance, Multiple allelism; Chromosomal theory of Inheritance; Linkage and Recombination; Polygenic Inheritance; Pleiotropy; Sex Determination- in birds, humans and honey bee; Mutation; Pedigree analysis; Genetic Disorders: Mendelian disorders –Colour blindness,Haemophilia,sickle-cell anaemia, phenylketonuria, Thalassemia; Chromosomal Disorders – Down’s syndrome, klinefelter’s syndrome, Turner’s syndrome. Chapter 6: Molecular Basis of Inheritance Structure of DNA and RNA; Packaging of DNA; The search for genetic material; RNA world; DNA Replication; Transcription; Genetic code; Translation; Regulation of Gene Expression; Human genome Project; DNA fingerprinting. Chapter 7: Evolution Origin of Life; Evolution of Life Forms; Evidences for Evolution; Adaptive radiation; Biological Evolution; Mechanism of Evolution; Hardy- Weinberg Principle; A brief account of evolution; Origin and Evolution of Man. UNIT VIII: Biology and Human Welfare (35 Periods) Chapter 8: Human Health and Disease Common Diseases in Humans (typhoid, pneumonia, commoncold, malaria, amoebiasis, ascariasis, filariasis, ring worm); Immunity (Innate, Acquired, Active and passive Immunity, Vaccination and Immunisation, Allergy, Auto Immunity); Immune System in the body; AIDS, Cancer, Drugs and Alcohol Abuse. Chapter 9: Strategies for Enhancement in food Production Animal Husbandry; Animal Breeding; Bee Keeping; Fisheries; Plant Breeding; Single Cell Protein; Tissue culture. Chapter 10: Microbes in Human welfare Microbes in Household Products, Industrial Products,Sewage Treatment, and Production of biogas; Microbes as Biocontrol agents and Biofertilisers.
Chapter 8: Human Health and Disease Common Diseases in Humans (typhoid, pneumonia, commoncold, malaria, amoebiasis, ascariasis, filariasis, ring worm); Immunity (Innate, Acquired, Active and passive Immunity, Vaccination and Immunisation, Allergy, Auto Immunity); Immune System in the body; AIDS, Cancer, Drugs and Alcohol Abuse. Chapter 9: Strategies for Enhancement in food Production Animal Husbandry; Animal Breeding; Bee Keeping; Fisheries; Plant Breeding; Single Cell Protein; Tissue culture. Chapter 10: Microbes in Human welfare Microbes in Household Products, Industrial Products,Sewage Treatment, and Production of biogas; Microbes as Biocontrol agents and Biofertilisers.
Chapter 11: Biotechnology: Principles and Processes Principles of Biotechnology; Tools of Recombinant DNA Technology; Process of Recombinant DNA Technology. Chapter 12: Biotechnology and Its Application Biotechnological Applications in agriculture (GMO and Bt cotton) and medicine (genetically engineered insulin, gene therapy, molecular diagnosis); Transgenic animals; Ethical Issues.
Chapter 13: Organisms and Populations Organisms and its environment:abiotic factors, response to abiotic factors,Adaptations. Populations: Population Attributes; Population Growth,Life history variation; Population Interactions- Predation, Competition, Parasitism, Commenselism and Mutualism. Chapter 14: Ecosystem Structure and Function; Productivity; Decomposition; Energy Flow; Ecological Pyramids; Ecological Succession; Nutrient Cycling; Ecosystem Services. Chapter 15: Biodiversity and Conservation Biodiversity: Patterns of Biodiversity; Importance of Species diversity to the Ecosystem; Loss of Biodiversity; Biodiversity Conservation. Chapter 16:Environmental Issues Air Pollution and Its Control; Water Pollution and Its Control; Solid Wastes; Agro – chemicals and their Effects; Radioactive Wastes; Greenhouse effects and Global Warming; Ozone depletion. Degradation by Improper Resource utilization and maintenance. Deforestation, Case Study of People’s Participation in Conservation of forests.

Biology Lessons  

Your Tutor : Dr. N. Shreth Chongtham
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