CBSE Class 11 Physics Practical Lab Manual 2026 PDF - Activity, Experiments

Download CBSE 11th Physics Lab Manual 2026

Students can check out the table below to access and download the CBSE Class 11 Physics experiments, activities, and projects PDF. They can click on the links given below in the table for the free PDF download links.

How to Download the CBSE Class 11 Physics Lab Manual 2026 Online?

Candidates appearing for the CBSE 11th Class practical examination 2026 can check out the steps below to learn more about how to download the laboratory manual online.

• Step 1: Visit the official website at ncert.nic.in.

• Step 2: Click on the “Publication” section on the menu bar on the homepage.

• Step 3: Click on the “Laboratory Manuals” from the publication drop-down menu.

• Step 4: Select the “Class XI” from the given options.

• Step 5: Navigate to the Physics section for the experiments, activities, and projects for the Class 11 Maths lab manual.

• Step 6: Click on the activity file you want to practice.

• Step 7: Download the file and save it for future reference.

Example of Experiment for CBSE 11th Physics Exam (Lab Work)

Students can find the PDF files for all activities and projects in the article above for the CBSE Class 11 Physics lab manual 2026. Check out the example of the CBSE 11th practical work for reference.

Aim

To find the downward force, along an inclined plane, acting on a roller due to gravity and study its relationship with the angle of inclination by plotting a graph between force and sin ?.

Apparatus and Materials Required

Inclines plane with protractor, pulley, roller, weight box, spring balance, spirit level, pan, and thread.

Principle

Result

Therefore, within experimental error, the downward force along the inclined plane is directly proportional to sin ?, where ? is the angle of inclination of the plane.

Precautions

• Ensure that the inclined plane is placed on a horizontal surface using the spirit level.

• The pulley must be frictionless.

• The weight should suspend freely without touching the table or other objects.

• The roller should roll smoothly, that is, without slipping.

• The weight, W, should be decreased in small steps.

Also, check -

• CBSE Class 9 Science Lab Manual 2026
• CBSE Class 10 Science Lab Manual 2026
• CBSE Class 12 Biology Lab Manual 2026
• CBSE Class 12 Chemistry Lab Manual 2026

Example of Activity for CBSE 11th Physics Exam (Lab Work)

Check out the details below of the CBSE Class 11 Physics activity.

Aim

To measure the force of limiting rolling friction for a roller (wooden block) on a horizontal plane.

Apparatus and Material Required

Wooden block with a hook on one side, set of weights, horizontal plane fitted with a frictionless pulley at one end, pan, spring balance, thread, spirit level, weight box and lead shots (rollers).

Principle

Rolling friction is the least force required to make a body start rolling over a surface. Rolling friction is less than the sliding friction.

Result

As the total weight being pulled increases, the limiting value of rolling friction increases/decreases.

Precautions

• The pulley should be frictionless. It should be lubricated, if necessary.

• The portion of the string between the pulley and the hook should be horizontal.

• The surfaces of lead shots, as well as the plane and the block, should be clean, dry, and smooth.

• The weights in the pan should be placed carefully and very gently.