KCET Optics Topics 2025
is divided into two major topics Ray Optics and Optical Instruments & Wave Optics. KCET 2025 Optics topics include Refraction, Total Internal Reflection, Refraction at Spherical Surfaces and by Lenses, Refraction through a Prism, Some Natural Phenomena due to Sunlight, The Rainbow, Optical Instruments, etc. Candidates who are preparing to appear for
KCET
must know that the expected weightage for the Optics chapter is 4 to 6 marks. As per previous years' trends, Lenses, Reflection/Refraction, and Optical Instruments can be considered important topics from Ray Optics and Interference and Diffraction from Wave Optics. In this article, we have discussed the KCET 2025 Optics Topics along with the expected weightage.
Also Check
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KCET Subject Wise Syllabus
KCET Optics Topics 2025
Check the list of topics covered in the Ray Optics and Optical Instruments and Wave Optics in the following table.
| KCET Ray Optics and Optical Instruments Topics 2025 | KCET 2025 Wave Optics Topics |
|---|---|
| Introduction | Introduction |
| Refraction | Huygens Principle |
| Total Internal Reflection | Reflection and Refraction of Plane Waves |
| Refraction at Spherical Surfaces and by Lenses | Coherent and Incoherent Addition of Waves |
| Refraction through a Prism | Interference of Light Waves and Young’s Experiment |
| Some Natural Phenomena due to Sunlight | Diffraction |
| The Rainbow | The Single Slit |
| Optical Instruments | Seeing the Single slit Diffraction Pattern |
| - | The Validity of Ray Optics |
Also Check: KCET Previous Years Question Papers
KCET 2025 Optics Important Topics
Check the table below to get an idea of important KCET 2025 Optics topics and Sub-topics.
Topics | KCET 2025 Optics Sub Topics |
|---|---|
Ray Optics and Optical Instruments |
|
Wave Optics |
|
KCET 2025 Optics Weightage
As per the previous years' analysis, candidates can expect at least 4 to 6 marks from Ray Optics and Optical Instruments and 2 to 4 marks from Wave Optics.
KCET 2025 Optics Topics | Weightage |
|---|---|
Ray Optics and Optical Instruments | 4 to 6 marks |
Wave Optics | 2 to 4 marks |
KCET 2025 Optics Books
The table contains the list of books and their authors/publishers that are suitable for KCET 2025 Optics Preparation.
- NCERT Physics Books from Class 11 and 12
- Concepts of Physics by H.C. Verma
- Understanding Physics for JEE Main & Advanced – Optics & Modern Physics by D.C. Pandey
- KCET Physics Chapter-wise and Topic-wise Solved Papers by Arihant Publications
- Objective Physics by Dinesh Publications
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KCET 2025 Optics Questions
1. Define total internal reflection.
When a light beam strikes the water, some of the light is reflected, and some are refracted. This phenomenon is called total internal reflection.
2. Dispersion can be observed through ______
- Wood
- Wall
- Paper
- Prism
Answer: d) Prism
Explanation: A prism is an optical device through which we can observe the dispersion of white light into its constituent colours.
3. Which among the following is the property of light?
- Diffraction
- Reflection
- Total internal reflection
- All the options
Answer: d) All the options.
Explanation: Light can undergo refraction, diffraction, reflection, and total internal reflection.
4. What are the types of images formed?
- Real
- Virtual
- Neither real nor virtual
- Both real and virtual
Answer: d) Both real and virtual.
Explanation: Images formed are of two types, real and virtual.
5. Light has the properties of
- Wave
- Particle
- Neither wave nor particle
- Both wave and particle
Answer: d) Both wave and particle.
Explanation: Light displays both wave and particle nature.
6. State true or false: Photons have a mass of more than two gms.
- TRUE
- FALSE
Answer: b) FALSE
Explanation: The photon is a massless quantity that moves at a vacuum’s speed.
7. The formation of images by mirrors is studied by:
- Geometrical optics
- Physical optics
- Neither Physical optics nor Geometrical optics
- None of the options
Answer: a) Geometrical Optics
Explanation: Geometrical optics deals with the formation of images by lenses, mirrors, and other devices that use light.
8. Choose YES or NO: The higher-density materials will have greater refractive indices.
- YES
- NO
Answer: a) YES
9. Refraction is used in devices like
- Cameras
- Projectors
- Telescopes
- All the above options
Answer: d) All the above options.
10. The bending of light when it passes from one medium to another is called_____
- Diffraction
- Reflection
- Total internal reflection
- Refraction
Answer: d) Refraction
Explanation: Refraction is the phenomenon that takes place due to the bending of light when it travels from one medium to another.
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FAQs
The cutoff of KCET refers to the minimum marks required by candidates to qualify for the KCET exam. KEA KCET cutoff is released separately for the general merit and Hyderabad Karnataka region. The exam authority releases the KCET cutoff after each counselling round.
It is not mandatory to attempt the Biology paper in the KCET exam if you want to opt for Engineering. Biology marks are only considered for the Medical, Dental and Paramedical fields. However, if you want to pursue Biotechnology in Engineering, attempting Biology in the KCET exam is compulsory.
50% mark is the passing percentage for the general category candidates and 40% for the SC/ST/OBC category for the KCET exam.
As per the previous year exam analysis, the KCET 2025 exam might be of a moderate to difficult level. KCET questions will be based on the first and second-year PUC syllabus as determined by the Department of Pre-University Education of Karnataka State.
Candidates cannot skip Mathematics in the KCET exam. Mathematics is a mandatory subject in the KCET exam, and skipping it would disqualify candidates from the KCET examination.
Candidates looking to score good marks in the Karnataka CET exam are advised to solve the KCET previous year question papers and mock tests. Solving PYQs of KCET will enable candidates to get an idea about the KCET question paper pattern and the marking scheme.
NCERT best books are a good choice for candidates to start if they want to prepare for the KCET 2025 exam. Upon finishing the NCERT books, candidates can move ahead to the crucial KCET best books. Additionally, the KCET best books are another resource that candidates can use to study for the KCET exam.
The identical chapters and subjects from Classes 11 and 12 are covered by the questions in both KCET and JEE Main exams. However, in comparison to KCET, the questions in the JEE Main exam are more difficult.
In KCET Physics, chapters such as Gravitation, Motion in a Straight Line, Oscillations, and Thermodynamics each contribute approximately 7% to 8% of the exam paper.
Chapters with maximum weightage in KCET Physics are Gravitation, Motion in a Straight Line, Oscillations and Thermodynamics since they carry 7% to 8% weightage. Important chapters for KCET Maths comprise Integration, Vectors, Permutation and Combination, and 3-D Geometry which weigh around 6% to 7% in the KCET exam.
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