Atoms – CBSE Class 12 Previous Year Questions (2020–2026)
All 13 CBSE Class 12 previous-year questions from Atoms (Physics), 2020–2026, taken from 8 papers. Practise them together in one test with the official marking and answer key, then review every answer.
▶ Practise all 13 questionsAll CBSE Class 12 chapters
Atoms questions by paper
Sample questions
- CBSE Class 12 Physics Board 2026 (Set 55/1/1)
The distance of closest approach of an alpha-particle is when it moves with a velocity head-on towards the target nucleus If the velocity of alpha particle is halved… - CBSE Class 12 Physics Board 2026 (Set 55/1/1)
For question number 18 to 16 two statements are given one labelled as Assertion A and the other labelled as Reason Select the correct answer to these questions from the… - CBSE Class 12 Physics SQP 2026-27
If nucleus scaled to football size is approximately then the radius of the orbit of electron will be approximately IA iC 22 km km - CBSE Class 12 Physics SQP 2026-27
Assertion A In Rutherford scattering experiment most of the alpha particles passed hrough the gold foil undeflected Reason The electrons in the atom are very light and…
Question text shown from the scanned paper; open the test to see each question exactly as printed.
More Physics chapters
- Electric Charges and Fields 9
- Electrostatic Potential and Capacitance 8
- Current Electricity 13
- Moving Charges and Magnetism 17
- Magnetism and Matter 4
- Electromagnetic Induction 8
- Alternating Current 6
- Electromagnetic Waves 8
- Ray Optics 19
- Wave Optics 10
- Dual Nature of Matter and Radiation 13
- Nuclei 6
- Semiconductor Electronics 12
- Communication Systems 1