Important 5 Marks Question for CBSE Class 12 Physics
5 marks cbse class 12 physics questions are the highest-weightage items in your board examination, often requiring detailed derivations and complex diagrams. These long-answer questions test your deep understanding of core concepts like Gauss’s Law, Optics, and Magnetism. Scoring well in this section is a vital part of achieving a high overall percentage in 2026.
|
Section |
Content Type |
Focus |
|
Electrostatics |
Math Steps |
Gauss's Law & Van de Graaff |
|
Magnetism |
Drawings |
Cyclotron & Galvanometers |
|
Optics |
Ideas |
Huygens’ Principle & Diffraction |
|
Modern Physics |
Lines/Graphs |
Binding Energy & Bohr’s Model |
Check Out: CBSE Class 12th Books
5 Marks CBSE Class 12 Physics Questions
Getting ready for your big test can feel like a lot of work. But if you look at the most important parts first, it gets much easier. These 5 marks cbse class 12 physics questions usually have three small parts. You might have to explain a word, show how a formula is made, and finish a small math problem. Don't skip these because they fill up a lot of space in your cbse class 12 physics question paper. If you know these well, the rest of the test will feel like a breeze.
Important Topics in Electrostatics
In almost every cbse class 12 physics question paper 2025, you will see a question about Gauss’s Law. Teachers love to ask this one.
-
Gauss’s Law: You need to show how to find the electric field for a round shell. Don't forget to show the field both inside and outside the shell.
-
Electric Dipoles: Make sure you practice finding the electric field for a dipole. It is a very common question.
-
Van de Graaff Generator: The links say you should be ready to draw this machine. You must explain how it works and how it moves electricity to a big ball.
Moving Charges and Magnetic Pull
When you look for cbse class 12 physics questions and answers, magnetism is a big deal because of the drawings. You’ll often need to explain how machines do their jobs.
-
The Cyclotron: You need to draw the "dees" and explain how magnets and electricity move the tiny particles. It helps to remember the math for how fast the particles go.
-
Moving Coil Galvanometer: This is a very important topic in the links. You should explain how it works and why it has a soft iron core inside. Also, learn why making it more sensitive to electricity doesn't always change the voltage.
-
Toroids: Can you show why there is no magnetic pull in the empty space outside a toroid? This might be in your cbse class 12 physics question 2025.
Check Out: Class 12th Sample Papers
Optics and How Light Moves
Light is a huge part of cbse class 12 physics questions. You need to be very neat with your drawings here.
Lenses and Glass Shapes
You might have to draw how light moves through two lenses touching each other. Showing how to find the total power of the lenses is something you must know. If you see a question about a glass prism, remember the "minimum deviation" part. The math is easy, but keep your drawing very clean.
Waves and Light Patterns
Huygens' Principle is a set of rules for light. You must use it to show how light bends. Another big part is the Double Slit experiment. We often see students get mixed up here. Make sure you can show how bright and dark spots appear on a wall. Also, the links tell us to look at Single Slit Diffraction. You need to explain the pattern and how wide the middle bright spot is.
Atom Power and Nuclear Ideas
Modern physics has some of the easiest 5 marks cbse class 12 physics questions to get full points on. The ideas are mostly about how atoms work.
-
Binding Energy Graph: You will likely need to draw a line showing energy. This helps explain how atoms join together or split apart to make power.
-
Bohr’s Rules: Can you show how light is made when a tiny electron moves? This is a regular part of the cbse class 12 physics question paper.
-
Radioactivity: Keep an eye on how neutrons break down. The sources also mention "neutrinos" and why they are so hard to find.
Check Out: CBSE Class 12 Previous Year Paper
CBSE Class 12 Physics Exam Tips
Knowing the stuff is good, but you also have to show it clearly on your paper.
Writing Great Answers
When you see a long question in the cbse class 12 physics question 2025, break it into pieces. Use a clear title for each part. Always use a pencil for your drawings and name every part of the picture. It’s a good idea to always put the final unit (like 'm' or 'kg') at the end of your math.
Using Your Time Wisely
Don't spend too long on just one math step. If you get stuck on a 5-mark question, move to the next one and come back at the end. We find that students who try a cbse class 12 physics question paper 2025 practice test do much better with their time.
Taking practice tests helps you learn how much time to give to each big drawing or long math derivation. It stops you from rushing at the very end when the bell is about to ring. If you practice often, you will feel calm and ready on your real exam day.
Read More: CBSE Class 12 Physics Chapter-Wise PYQs
Important 5 Marks Question for CBSE Class 12 Physics FAQs
-
Which chapters have the most 5-mark questions?
Chapters like Electrostatics, Light, and Magnets are where most 5 marks cbse class 12 physics questions come from. -
Are drawings needed for 5-mark questions?
Yes! Even if the paper doesn't ask, a good drawing is a vital part of getting a perfect score. -
Can I get 5 marks for just the math?
Usually, these questions are split into parts. You need to do the drawing, the explanation, and the math to get all 5 marks. -
Is Bohr's model important for 2026?
Yes. The rules Bohr made and the math that comes from them are very common cbse class 12 physics questions. -
How should I practice for the 2026 exam?
Work on cbse class 12 physics question papers from the last five years. Focus on the long questions to get used to writing more.





