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CBSE SYLLABUS (2022-23)

Given below is the CBSE Class 12 Physics syllabus along with the marking scheme and number of periods required for completing each unit.

### CBSE Class 12 Physics Syllabus 2022-23

CBSE Syllabus for Class 12 Physics consist of nine units as mentioned in the table below.

Time: 3 Hours
Max Marks: 70

 Unit No. Name of Unit No. of Periods Marks Unit–I Electrostatics 26 16 Chapter–1: Electric Charges and Fields Chapter–2: Electrostatic Potential and Capacitance Unit-II Current Electricity 18 Chapter–3: Current Electricity Unit-III Magnetic Effects of Current and Magnetism 25 17 Chapter–4: Moving Charges and Magnetism Chapter–5: Magnetism and Matter Unit-IV Electromagnetic Induction and Alternating Currents 24 Chapter–6: Electromagnetic Induction Chapter–7: Alternating Current Unit–V Electromagnetic Waves 04 18 Chapter–8: Electromagnetic Waves Unit–VI Optics 30 Chapter–9: Ray Optics and Optical Instruments Chapter–10: Wave Optics Unit–VII Dual Nature of Radiation and Matter 08 12 Chapter–11: Dual Nature of Radiation and Matter Unit–VIII Atoms and Nuclei 15 Chapter–12: Atoms Chapter–13: Nuclei Unit–IX Electronic Devices 10 07 Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits Total 160 70

## CBSE Syllabus for Class 12 Physics Practical

### List of Experiment for Class 12 Physics Practical: Section A

1. To determine resistivity of two / three wires by plotting a graph between potential difference versus current.
2. To find the resistance of a given wire / standard resistor using metre bridge.
3. To verify the laws of combination (series) of resistances using a metre bridge.
OR
To verify the laws of combination (parallel) of resistances using a metre bridge
4. To determine the resistance of a galvanometer by half-deflection method and to find its figure of merit.
5. To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same.
OR
To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same.
6. To find the frequency of AC mains with a sonometer.

#### CBSE Syllabus for Class 12 Physics Practical: Activities Assigned

1. To measure the resistance and impedance of an inductor with or without iron core.
2. To measure resistance, voltage (AC/DC), current (AC) and check continuity of a given circuit using multimeter.
3. To assemble a household circuit comprising three bulbs, three (on/off) switches, a fuse and a power source.
4. To assemble the components of a given electrical circuit.
5. To study the variation in potential drop with length of a wire for a steady current.
6. To draw the diagram of a given open circuit comprising at least 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.

### List of Experiment for Class 12 Physics Practical: Section B

1. To find the value of v for different values of u in case of a concave mirror and to find the focal length.
2. To find the focal length of a convex mirror, using a convex lens.
3. To find the focal length of a convex lens by plotting graphs between u and v or between 1/u and 1/v.
4. To find the focal length of a convex mirror, using a convex lens.
5. To determine the angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation.
6. To determine the refractive index of a glass slab using a travelling microscope.
7. To find the refractive index of a liquid by using a convex lens and plane mirror.
8. To find the refractive index of a liquid using a concave mirror and a plane mirror.
9. To draw the I-V characteristic curve for a p-n junction in forward bias and reverse bias.

#### CBSE Syllabus for Class 12 Physics: Activities Assigned

1. To identify a diode, an LED, a resistor and a capacitor from a mixed collection of such items.
2. Use of multimeter to see the unidirectional flow of current in case of a diode and an LED and check whether a given electronic component (e.g., diode) is in working order.
3. To study effect of intensity of light (by varying distance of the source) on an LDR.
4. To observe refraction and lateral deviation of a beam of light incident obliquely on a glass slab.
5. To observe diffraction of light due to a thin slit.
6. To study the nature and size of the image formed by a (i) 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).
7. To obtain a lens combination with the specified focal length by using two lenses from the given set of lenses.
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