# CLASS 12TH PHYSICS PRACTICAL In This Blog I will share Class 12th All Physics Practical Including All Activities.

As CBSE ( CENTRAL BOARD OF SECONDARY EDUCATION) Examination is coming, and we are Supposed to Submit Our Practical File To The school so that we can got Practical Marks.

Here In this Blog I had Shared My Class 12th Physics Practical File Pdf With You, and also you can Download It From Here.

## Practicals To be Covered

1. To determine Resistivity Of Two/ Three Wire By Plotting A Graph For Potential Difference Versus Current.
2. To find resistance of a given wire / standard resistor using a metre bridge.
OR

3. To verify the laws of combination (series) of resistances using a metre bridge.

OR
4. To verify the laws of combination (parallel) of resistances using a metre bridge.
5. To compare the EMF of two given primary cells using a potentiometer.
OR
6. To determine the internal resistance of a given primary cell using a potentiometer.
7. To determine resistance of a galvanometer by half-deflection method and to find its figure of merit.
8. To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same.
OR
9. To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same.
10. To find the frequency of AC mains with a sonometer.
11. To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same.
OR
12. To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same.
13. To find the frequency of AC mains with a sonometer.
14. To find the focal length of a convex lens by plotting graphs between u and v or between 1/u and 1/v.
15. To find the focal length of a convex mirror, using a convex lens.
OR
16. To find the focal length of a concave lens, using a convex lens.
17. To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation.
18. To determine refractive index of a glass slab using a travelling microscope.
19. To find refractive index of a liquid by using convex lens and plane mirror.
20. To draw the I-V characteristic curve for a p-n junction diode in forward bias and reverse bias.

## Activities To Be Covered

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 a 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.
7. To identify a diode, an LED, a resistor and a capacitor from a mixed collection of such items.
8. To study the variation in potential drop with length of a wire for a steady current.
9. To obtain a lens combination with the specified focal length by using two lenses from the given set of lenses.
10. 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).
11. To observe diffraction of light due to a thin slit.
12. To observe polarization of light using two Polaroids
13. To observe refraction and lateral deviation of a beam of light incident obliquely on a glass slab.
14. To study the effect of intensity of light (by varying distance of the source) on an LDR
15. Use of a 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.
16. To identify a diode, an LED, a resistor and a capacitor from a mixed collection of such items.

## Frequently Asked Questions

### How Much Marks Of Physics Practical Carry

30, including Projects and activities

### What questions come in Viva.

Related tto experiment.

### Theory Marks For Exam

70

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