Physics practical class 12 pdf download: Class 12th or Intermediate has an decorum in which each and every subject gains high potential which means there is comparatively more knowledge and description of the subject. If we compare the syllabus of class 12th from class 10th we can easily spot the difference in syllabus weightage and explanation of the subject. This scenario is followed in Maths, Biology, Chemistry, Physics which are the most crucial subjects of class 12.
Due to increase in syllabus and detailing of the subjects in class 12 tire is strictly needed for practicals and experiments. With the help of practicals and experiments the knowledge turns into “Feel”. It consequently helps in maintaining the learning power and knowledge stays in mind for a longer time.
Physics practical class 12 pdf download
CBSE who is the governing body assigned to regulate and watch the study pattern and methods of quality teaching. CBSE knows how students can get interest and clarity of knowledge. Thus CBSE has included practical in class 12 which are quite compulsory.
Lab Manual are the books in which practicals and experiments of class 12 are mentioned according to the latest syllabus of NCERT.
These Lab Manuals are available in the market to assist the students in carrying out the experiments.
If we talk about Physics Practical in Class 12 there are various important topics for which practicals are given in the Lab Manuals, if we count there are more than 15 Practicals and Experiments in class 12th Physics. Each practical requires dissimilar efforts and apparatus of the Physics Laboratory.
What is given in Lab Manuals
In Lab Manuals many practicals and experiments are given which are strictly followed on the latest pattern of CBSE.
Lab Manuals contains an experiment in the following way(How the experiment is presented in the Manual):-
- Aim:-It is the name of the experiment about what we are going to conduct.
- Apparatus Required:-It is the list of materials and tools required to carry out an specific experiment.
- Principle:– Here the principle of the working of the particular experiment is given but not in verbosity.
- Circuit Diagram:– Diagram associated with the experiment is designed in this heading to help in better understanding the role of apparatus and parts of the entire experiment.
- Procedure:– Instructions to carry out the experiment are described in this heading.
- Observations:– Here the outcomes of the experiment and the experimental values of the experiment are presented.
- Result:– In this heading the final conclusion of the experiment is supposed to be mentioned.
- Precautions:– To avoid errors and mistakes during the experiment, precautions are given to rectify the forthcoming errors.
Importance of Practicals in Result
CBSE sends the examiner to the CBSE affiliated schools and institutions to examine the condition of Laboratories and that examiner also conducts a test to examine whether the understudies have gone through practicals or not. These Examiners are sent nearly one month before Annual Examinations.
Examiner checks the Experiment file of the students and also takes a viva of the subject (Here we are talking with reference to Physics) to ensure the quality education of the students.
These Practical Files and Viva hold marks which are given by the examiner on the basis presentation of experiment and Viva. And these marks are independent of Interference of Schools. Examiner submits these marks to the CBSE which are included in the final result.
Although CBSE releases the datesheet of practicals too before 1 month of Annual examinations. It is the duration in which an examiner comes to the institution and school to complete their assigned task.
How Examiner Gives Marks
|Any Two Experiments of your Practical File||8 Marks each, Total,8×2=16|
|Marks Practical Record||7|
|Viva on Experiments and Activities||7|
List of Experiments in Physics Class 12th
- To determine the resistivity of two/three wires by plotting a graph between potential difference versus current
- “To determine resistivity of two / three wires by plotting a graph between potential difference versus current.
- 2. To find resistance of a given wire / standard resistor using a metre bridge.
- To verify the laws of combination (series) of resistances using a meter bridge.
- To verify the Laws of combination (parallel) of resistances using a meter bridge.
- 3. To compare the EMF of two given primary cells using potentiometer.
- To determine the internal resistance of a given primary cell using potentiometer.
- 4. To determine 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.
- 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.
Experiments Assigned for Term-II
- 1. To find the focal Length of a convex lens by plotting graphs between u and v or between 1/u and 1/v.
- 2. To find the focal Length of a concave lens, using a convex lens.
- To find the focal length of a convex mirror, using a convex Lens
- 3. To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation.
- 4. To determine the refractive index of a glass slab using a traveling microscope.
- 5. To find the refractive index of a liquid by using convex Lens and plane mirror.
- 6. To draw the I-V characteristic curve for a p-n junction in forward bias and reverse bias.
Class 12 Physics Activities
Activities Term I
- 1. To measure the resistance and impedance of an inductor with or without an 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 the 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 the circuit diagram.
- 1. To identify a diode, an LED, a resistor and a capacitor from a mixed collection of such items.
- 2. Use a multimeter to see the unidirectional flow of current in the case of a diode and an LED and check whether a given electronic component (e.g., diode) is in working order.
- 3. To study the 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 polarization of light using two Polaroids.
- 6. To observe the diffraction of light due to a thin slit.
- 7. 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).
- 8. To obtain a lens combination with the specified focal length by using two lenses from the given set of lenses.
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