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Physics Practical Class 12: Get all the Important Details

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Last updated date: 17th Apr 2024
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The Physics Practical Class 12 in the Central Board of Secondary Education (CBSE) curriculum holds a significant weightage in the final assessment of the subject. These practicals are an essential aspect of the board exams and contribute 30 marks to the overall score of the students. While students may focus on preparing for the theoretical aspects of different subjects, it is crucial to give due attention to the practical component of Physics as well.


To perform well in the Physics Practical Class 12 2023 exams, students must have a thorough understanding of the experiments, theorems, laws, and numerical problems involved in the subject. This level of understanding allows them to comprehend the concepts in a detailed manner, which is crucial in scoring well on exams. It is therefore essential that students prepare for the practicals alongside the theoretical aspects of the subject.


In today's age of digital technology, students can access the Class 12 Physics Practical Viva Questions With Answers PDF for free, which provides them with a comprehensive guide on the experiments and concepts involved in the practicals. By studying the Physics Practical Class 12, students can gain a better understanding of the practical component of the subject and perform better in their exams.

Competitive Exams after 12th Science

Download Physics Practical File Class 12 to Get all the Information

There are 2 different sections in Physics Practical Class 12. The marks are allocated on the basis of the performance of the experiment. The first section, section A, comprises six experiments that students are required to perform during the practical exam. Each experiment in this section is evaluated based on two marks for experiment records and activities, and five marks for the viva related to the experiment.


To perform well in the practical exam, students must be familiar with the experiments and activities involved in both sections A and B. Therefore, it is essential for them to have access to a comprehensive guide that covers all the experiments in detail. To cater to this requirement, the Physics Practical Class 12 PDF Download is made available to students. This manual provides a thorough explanation of each experiment, including the theoretical background, materials required, the procedure to be followed, and expected outcomes.


By referring to the Physics Practical Class 12 CBSE, students can gain a better understanding of the practical component of the subject and prepare accordingly for the practical exam. The manual helps students to identify the essential aspects of each experiment, including the calculations and observations required to perform the experiments successfully. With this resource at their disposal, students can perform well in the practical exam and secure good marks in Physics. So, students should definitely go ahead and download these practical for Class 12 PDF files from our official website and get the guidance that they want.


CBSE Class 12 Physics Practical MCQ With Answers 

1. Which of the following particles has a positive electric charge?


a) Neutron

b) Electron

c) Proton

d) None of the above

Answer: c) Proton


2. The potential difference between two points A and B is 12 V. If the charge on an electron is -1.6 × 10^-19 C, what is the work done in moving an electron from A to B?


a) 1.92 × 10^-18 J

b) 1.92 × 10^-20 J

c) 7.68 × 10^-20 J

d) 7.68 × 10^-18 J

Answer: c) 7.68 × 10^-20 J


3. A capacitor is charged by a battery and then disconnected from the battery. What happens to the electric field inside the capacitor?


a) It disappears immediately

b) It disappears slowly over time

c) It remains constant

d) It increases in magnitude

Answer: c) It remains constant.


4. Which of the following statements is true for an ideal ammeter?


a) It has high resistance.

b) It has low resistance.

c) It is connected in parallel in the circuit.

d) It is connected in series in the circuit.

Answer: b) It has low resistance.


5. A positively charged particle moves to the right in a magnetic field. In which direction does the magnetic force act on the particle?


a) Upwards

b) Downwards

c) To the left

d) To the right

Answer: b) Downwards


6. Which of the following materials is diamagnetic?


a) Iron

b) Copper

c) Gold

d) Silver

Answer: c) Gold


7. Which of the following devices converts mechanical energy into electrical energy?


a) Dynamo

b) Motor

c) Transformer

d) Capacitor

Answer: a) Dynamo


8. Which of the following quantities remains constant in an AC circuit?


a) Voltage

b) Current

c) Power

d) None of the above

Answer: d) None of the above


9. Which of the following electromagnetic waves has the shortest wavelength?


a) Radio waves

b) Microwaves

c) X-rays

d) Gamma rays

Answer: d) Gamma rays


10. A convex lens always forms a:


a) Virtual and erect image

b) Virtual and inverted image

c) Real and inverted image

d) Real and erect image

Answer: d) Real and erect image


11. Which of the following phenomena is an example of diffraction?


a) Formation of rainbow

b) Polarization of light

c) Interference pattern

d) Bending of light around an obstacle

Answer: d) Bending of light around an obstacle


12. The de Broglie wavelength of a particle is proportional to:


a) Its mass

b) Its speed

c) Planck's constant

d) Its momentum

Answer: d) Its momentum


13. Which of the following subatomic particles is present in the nucleus of an atom?


a) Electron

b) Proton

c) Neutron

d) Positron

Answer: c) Neutron


14. Which of the following materials is a good conductor of electricity?


a) Silicon

b) Germanium

c) Copper

d) None of the above

Answer: c) Copper


15. Which of the following modulation techniques is used in FM radio broadcasting?


a) Amplitude modulation

b) Frequency modulation

c) Phase modulation

d) Pulse modulation

Answer: b) Frequency modulation


Experiments Included in Physics Practical File Class 12 

Here are some of the experiments included in the Physics Practical Class 12 CBSE file which is divided into 2 sections.


CBSE Class 12 Physics Experiments

Section A


  • Determining the resistivity of 2/3 wires by creating a graph between current vs potential difference. 

  • Determining the resistance of a certain standard resistor/wire with the help of a metre bright. 

  • Verifying the various combination laws whether it is in series or parallel with the use of a particular metre bridge. 

  • Determining the resistance of a galvanometer using the half-deflection method. Finding out the figure of merit. 

  • Converting the galvanometer into a particular voltmeter of a specified range and verifying it.

  • Determining the particular frequency of AC mains using a device called the sonometer.


Section B


  • Finding the value of v for various values of u in the case of a concave mirror. Finding the focal length. 

  • Using a convex lens, students have to determine the focal length of a particular convex mirror. 

  • Using graphs to determine the focal length of a particular convex lens. 

  • Finding a concave lens’s focal length using convex lenses.

  • Determining the minimum deviation angle for a prism by creating a graph between the angles of deviation and incidence.

  • Determining the refractive index of a particular glass slab with the help of a travelling microscope. 

  • Finding the refractive index of a particular liquid using a plane mirror and convex lens. 

  • Finding the refractive index of a particular liquid using a plane mirror and concave mirror. 

  • Drawing the I-V characteristic curve for the p-n junction in reverse and forward bias.


Excel in Physics Practical Class 12 2023 Exams With Our Help

When it comes to preparation for physics practical exams, students might need all the help that they can get. With the help of our Physics Practical Class 12 PDF files, they will have the proper guidance that they need to conduct the experiments and come to a suitable conclusion as well. Aside from the practical experiments, there are other activities as well in the syllabus that students will be able to learn about. So, go ahead and download the Class 12 Physics practical file right now.

FAQs on Physics Practical Class 12: Get all the Important Details

1. Are the experiments in the Physics practical file Class 12 challenging?

While there are some simple experiments in the Physics Practical Class 12 syllabus, there are some that might be challenging for the students. However, with the right guidance from our lab manuals and PDFs, students will be able to complete their practical experiments easily.

2. Are Physics practical for CBSE Class 12 important?

Yes, Physics Practical for CBSE Class 12 is a vital component of the subject's assessment and holds significant importance in the overall academic performance of the students. It contributes a significant weightage of marks to the final score of the subject, which can make a difference in the overall percentage obtained by the student in the board exams.

3. What are the benefits of completing Physics Practical Class 12?

The component of Physics Practical Class 12 enables students to apply theoretical concepts and principles to real-life situations, thereby enhancing their understanding of the subject. It also helps in developing practical skills such as observation, data collection, analysis, and problem-solving, which are essential for higher education and future careers.