CBSE Syllabus for Class 12 Physics
False______________________________________________________________________________________________________________
| Unit | Chapter / Topic | Marks |
| I | Electrostatics | 15 |
| Chapter 1: Electric Charges and Fields | ||
| Chapter 2: Electrostatic Potential and Capacitance | ||
| II | Current Electricity | |
| Chapter 3: Current Electricity | ||
| III | Magnetic Effect of Current & Magnetism | 16 |
| Chapter 4: Moving Charges and Magnetism | ||
| Chapter 5: Magnetism and Matter | ||
| IV | Electromagnetic Induction & Alternating Current | |
| Chapter 6: Electromagnetic Induction | ||
| Chapter 7: Alternating Current | ||
| V | Electromagnetic Waves | 17 |
| Chapter 8: Electromagnetic Waves | ||
| VI | Optics | |
| Chapter 9: Ray Optics and Optical Instruments | ||
| Chapter 10: Wave Optics | ||
| VII | Dual Nature of Matter | 10 |
| Chapter 11: Dual Nature of Radiation and Matter | ||
| VIII | Atoms & Nuclei | |
| Chapter 12: Atoms | ||
| Chapter 13: Nuclei | ||
| IX | Electronic Devices | 12 |
| Chapter 14: Semiconductor Electronics | ||
| X | Communication Systems | |
| Chapter 15: Communication Systems | ||
| Total | 70 |
False
Chapter 1: Electric Charges and Fields
False
False
False
Chapter 2: Electrostatic Potential and Capacitance
True
True
False
Chapter 3: Current Electricity
False
False
Potentiometer – principle and its applications to measure potential difference and for comparing emf of two cells; measurement of internal resistance of a cell.
False
Chapter 4: Moving Charges and Magnetism
False
False
False
False
Chapter 5: Magnetism and Matter
True
False
True
Chapter 6: Electromagnetic Induction
False
: Self and mutual induction.
Chapter 7: Alternating Current
False
Paraphrase: AC generator and transformer.
False
Chapter 8: Electromagnetic Waves
False
True
False
Chapter 9: Ray Optics and Optical Instruments
Ray Optics: 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, lensmaker’s formula. Magnification, power of a lens, combination of thin lenses in contact combination of a lens and a mirror. Refraction and dispersion of light through a prism.
Scattering of light – blue colour of sky and reddish apprearance of the sun at sunrise and sunset.
Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.
Chapter 10: Wave Optics
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. Interference Young’s double slit experiment and expression for fringe width, coherent sources and sustained interference of light. Diffraction due to a single slit, width of central maximum. Resolving power of microscopes and astronomical telescopes. Polarisation, plane polarised light Brewster’s law, uses of plane polarised light and Polaroids.
False
Chapter 11: Dual Nature of Radiation and Matter
True
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
False
Chapter 12: Atoms
False
Chapter 13: Nuclei
False
False
True
Chapter 14: Semiconductor Electronics: Materials, Devices and Simple Circuits
False
False
False
False
False
Chapter 15: Communication Systems
False
False
False
- Record of at least 15 Experiments [with a minimum of 6 from each section], to be performed by the students.
- Record of at least 5 Activities [with a minimum of 2 each from section A and section B], to be demonstrated by the teachers.
- The Report of the project to be carried out by the students.
Evaluation Scheme
Time Allowed:
Three hours
Max. Marks:
30 marks
| Two experiments one from each section | 8+8 Marks |
| Practical record [experiments and activities] | 6 Marks |
| Investigatory Project | 3 Marks |
| Viva on experiments, activities and project | 5 Marks |
| Total | 30 marks |
SECTION-A
Experiments
- To determine resistance per cm of a given wire by plotting a graph for potential difference versus current.
- To find resistance of a given wire using metre bridge and hence determine the resistivity (specific resistance) of its material.
- To verify the laws of combination (series) of resistances using a metre bridge.
- To verify the laws of combination (parallel) of resistances using a metre bridge.
- To compare the EMF of two given primary cells using potentiometer.
- To determine the internal resistance of given primary cell using potentiometer.
- To determine resistance of a galvanometer by half-deflection method and to find its figure of merit.
- To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same.
- To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same.
- To find the frequency of AC mains with a sonometer.
Activities
(For the purpose of demonstration only)
- To measure the resistance and impedance of an inductor with or without iron core.
- To measure resistance, voltage (AC/DC), current (AC) and check continuity of a given circuit using multimeter.
- To assemble a household circuit comprising three bulbs, three (on/off) switches, a fuse and a power source.
- To assemble the components of a given electrical circuit.
- To study the variation in potential drop with length of a wire for a steady current.
- To draw the diagram of a given open circuit comprising at (east a battery, resistor/rheostat, key, ammeter and voltmeter. Mark the components that are not connected in proper order and correct the circuit and also the circuit diagram.
SECTION-B
Experiments
- To find the value of y for different values of u in case of a concave mirror and to find the focal length.
- To find the focal length of a convex mirror, using a convex lens.
- To find the focal length of a convex lens by plotting graphs between u and y or between 1/u and 1/v.
- To find the focal length of a concave lens, using a convex lens.
- To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation.
- To determine refractive index of a glass slab using a travelling microscope.
- To find refractive index of a liquid by using convex lens and plane mirror.
- To draw the I-V characteristic curve for a p.n junction in forward bias and reverse bias.
- To draw the characteristic curve of a zener diode and to determine its reverse break down voltage.
- To study the characteristic of a common – emitter npn or pnp transistor and to find out the values of current and voltage gains.
Activities
(For the purpose of demonstration only)
-
To identify a diode, an LED, a transistor, an IC, a resistor and a capacitor from a mixed collection of
such items. - Use of multimeter to (i) identify base of transistor, (ii) distinguish between npn and pnp type transistors, (iii) see the unidirectional flow of current in case of a diode and an LED, (iv) check whether a given electronic component (e.g., diode, transistor or IC) is in working order.
- To study effect of intensity of light (by varying distance of the source) on an LDR.
- To observe refraction and lateral deviation of a beam of light incident obliquely on a glass slab.
- To observe polarization of light using two Polaroids.
- To observe diffraction of light due to a thin slit.
- To study the nature and size of the image formed by a (1) convex lens, (ii) concave mirror, on a screen by using a candle and a screen (for different distances of the candle from the lens/mirror).
- To obtain a lens combination with the specified focal length by using two lenses from the given set of lenses.
Suggested Investigatory Projects
- To study various factors on which the internal resistance/EMF of a cell depends.
-
To study the variations in current flowing in a circuit containing an LDR because of a variation in
(a) the power of the incandescent lamp, used to illuminate’ the LDR (keeping all the lamps at a fixed distance).
(b) the distance of a incandescent lamp (of fixed power) used to ‘illuminate’ the LDR. - To find the refractive indices of (a) water (b) oil (transparent) using a plane mirror, an equi convex lens (made from a glass of known refractive index) and an adjustable object needle.
- To design an appropriate logic gate combination for a given truth table.
- To investigate the relation between the ratio of (i) output and input voltage and (ii) number of turns in the secondary coil and primary coil of a self designed transformer.
- To investigate the dependence of the angle of deviation on the angle of incidence using a hollow prism filled one by one, with different transparent fluids.
- To estimate the charge induced on each one of the two identical styrofoam (or pith) balls suspended in a vertical plane by making use of Coulombs law.
- To set up a common base transistor circuit and to study its input and output characteristic and to calculate its current gain.
- To study the factor on which the self inductance of a coil depends by observing the effect of this coil, when put in series with a resistor/(bulb) in a circuit fed up by an A.C. source of adjustable frequency.
- To construct a switch using a transistor and to draw the graph between the input and output voltage and mark the cut-off, saturation and active regions.
- To study the earths magnetic field using a tangent galvanometer.
Paraphrase: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed Books: Prescribed
- Physics, Class XI, Part I and II, Published by NCERT.
- Physics, Class XII, Part -I and II, Published by NCERT.
- Laboratory Manual of Physics for class XII Published by NCERT.
- The list of other related books and manuals brought out by NCERT (consider multimedia also).
