3 Mark Questions · original practice
3 Mark Questions for Class 12 Physics. Try first, then reveal the answer. These are exam-oriented practice items, not copied board papers.
Practice questions aligned to NCERT topics used in CBSE classrooms. These are original exam-oriented questions for revision — not official CBSE board papers and not a guarantee of any exam question. Always match the textbook issued by your school and the latest PDFs on ncert.nic.in and cbseacademic.nic.in.
Answers opened: 0
Coulomb’s law. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electric Charges and Fields · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Electric field of a dipole. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electric Charges and Fields · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Gauss’s law. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electric Charges and Fields · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Field due to infinite sheet/line as in NCERT. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electric Charges and Fields · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Electric Charges and Fields is an NCERT chapter taught in CBSE Class 12 Physics. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electric Charges and Fields · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electric Charges and Fields · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Equipotential surface. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electrostatic Potential and Capacitance · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Capacitance C=Q/V. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electrostatic Potential and Capacitance · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Series and parallel capacitors. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electrostatic Potential and Capacitance · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Energy ½CV². Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electrostatic Potential and Capacitance · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Electrostatic Potential and Capacitance is an NCERT chapter taught in CBSE Class 12 Physics. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electrostatic Potential and Capacitance · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electrostatic Potential and Capacitance · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Ohm’s law microscopic J=σE. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Current Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Kirchhoff’s rules. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Current Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Wheatstone bridge. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Current Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Internal resistance. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Current Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Current Electricity is an NCERT chapter taught in CBSE Class 12 Physics. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Current Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Current Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Ampere’s circuital law. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Moving Charges and Magnetism · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
F=q(v×B). Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Moving Charges and Magnetism · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Cyclotron. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Moving Charges and Magnetism · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Force between parallel currents. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Moving Charges and Magnetism · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Moving Charges and Magnetism is an NCERT chapter taught in CBSE Class 12 Physics. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Moving Charges and Magnetism · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Moving Charges and Magnetism · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Earth’s magnetic elements. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Magnetism and Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Para, dia, ferro. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Magnetism and Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Curie temperature. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Magnetism and Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Hysteresis idea. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Magnetism and Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Magnetism and Matter is an NCERT chapter taught in CBSE Class 12 Physics. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Magnetism and Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Magnetism and Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Lenz’s law (energy conservation). Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Induction · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Motional emf. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Induction · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Self and mutual induction. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Induction · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
AC generator idea. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Induction · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Electromagnetic Induction is an NCERT chapter taught in CBSE Class 12 Physics. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Induction · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Induction · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Reactance XL=ωL, XC=1/ωC. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Alternating Current · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Power P=Vrms Irms cosφ. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Alternating Current · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Series LCR resonance. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Alternating Current · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Transformer. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Alternating Current · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Alternating Current is an NCERT chapter taught in CBSE Class 12 Physics. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Alternating Current · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Alternating Current · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
EM waves are transverse. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Waves · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
c=1/√(μ0ε0). Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Waves · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
EM spectrum uses. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Waves · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Energy and momentum of EM wave idea. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Waves · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Electromagnetic Waves is an NCERT chapter taught in CBSE Class 12 Physics. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Waves · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
ExplanationThree-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
MetaClass: Class 12 · Subject: Physics · Chapter: Electromagnetic Waves · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
No. They are original practice questions aligned to NCERT topics used in CBSE classrooms. Official sample papers are published on cbseacademic.nic.in.
Nobody can promise a question. Use them for revision of frequently tested concepts and exam-style practice.
Yes, the catalog follows current NCERT textbooks used in CBSE schools (including new middle-stage books such as Ganita Prakash and Curiosity). Always match the book issued by your school.
Open the NCERT-style practice link on this subject or chapter. For word-for-word textbook exercise answers, use the NCERT book itself; we do not copy solution keys from other websites.
Hub /cbse/, then /cbse/class-12/, then subject and chapter slugs.
So students searching for “3 Mark Questions” land on a filtered set, while the chapter page remains the full 100-question bank. Same facts, different search intent.
Follow this loop every day: mixed test, current affairs, then today's subject. A new set arrives tomorrow.
After this page, use these three links — do not open a random page.
More sets from the same cluster — stay on this topic.
Timed papers with a scorecard — start any time, then return to a related quiz above.
