KCET Atoms Weightage 2026
KCET Atoms Weightage 2026 is expected to be 3% to 4% which is approximately 2 to 3 questions in the KCET 2026 exam. Some of the important topics for KCET Atoms are Rutherford's Atomic Model, Bohr's Model of the Hydrogen Atom, Emission and Absorption Spectra, and De Broglie's Hypothesis.
KCET Atoms Weightage 2026: Atoms carry an expected weightage of around 3 to 4% in the KCET 2026 exam. Candidates can anticipate 2 to 3 questions from this topic. The chapter covers key concepts such as Rutherford’s atomic model, emission and absorption spectra, Bohr’s model of the hydrogen atom, De Broglie’s hypothesis, and energy levels and transitions. Aspirants appearing for the KCET 2026 exam should aim to master this chapter by focusing on conceptual clarity, numerical problem-solving, and theory-based questions.
To score well in the KCET 2026 exam, candidates must have a thorough understanding of the prescribed syllabus. Practising KCET previous years’ question papers can further improve accuracy and boost overall scores. In this article, we have covered the KCET 2026 Atoms weightage, important topics, and a few sample questions to support effective preparation.
Also check: What is a good scores in the KCET 2026 exam?
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Expected KCET Atoms Weightage 2026
In the KCET 2026 Physics section, the KCET 2026 syllabus of Atoms generally accounts for a small but significant portion of the KCET 2026 exam. Based on the KCET's previous years' question paper patterns, the total number of questions from this topic generally falls within the range of 2 to 3. KCET Atoms is one of the chapters that holds approximately 3-4 % of the weightage of the Physics section, which comprises 60 questions. These topics generally cover conceptual questions, theory-based questions, along numerical problems.
Also check: KCET Sample Paper
KCET 2026 Atoms Important Topics
Some of the important topics of KCET 2026 Atoms have been listed below.
Topics | Details |
Rutherford's Atomic Model | Explanation of the alpha particle scattering experiment and its limitations. |
Bohr’s Model of the Hydrogen Atom | Postulates, energy levels, quantization of angular momentum, and spectral lines. |
Emission and Absorption Spectra | Description of spectral series (Lyman, Balmer, Paschen, Brackett, and Pfund). |
Energy Levels and Transitions | Calculation of energy differences between orbits and photon emission. |
De Broglie’s Hypothesis | Connection between particle and wave nature. |
Heisenberg’s Uncertainty Principle | Basic concepts and implications for atomic models. |
Nucleus | Concept of nucleons and atomic mass, ions, and isotopes. |
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KCET Atoms Sample Questions
Candidates can check some of the sample KCET Atoms questions as provided below.
- If a hydrogen atom emits a photon of energy 10.2 eV, what is the initial and final energy level of the electron?
- Which spectral line in the Balmer series corresponds to a transition from n=4n = 4n=4 to n=2n = 2n=2? (Understanding of emission lines and their wavelengths is needed.)
- What is the radius of the second orbit of a hydrogen atom according to Bohr’s model? (Options might include different multiples of the Bohr radius.)
- An alpha particle is fired towards a gold foil in Rutherford’s experiment. If it deflects by 180°, what does this indicate about the nature of the atomic nucleus?
- Calculate the energy of the photon emitted when an electron in a hydrogen atom transitions from n=3 to n=2.
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