Explore: All CBSE Class 10 chapters · CBSE Class 10 Science PYQs · CBSE Class 10 hub · Syllabus & pattern · Class 10 2026
Answer first
Light: Reflection and Refraction PYQs (previous year questions) for CBSE Class 10: Light: Reflection and Refraction (Science) had 36 questions across the 40 official CBSE Class 10 papers we tagged (2016–2026), and appeared in 9 of them. Asked in 9 of 10 years. The concepts asked in the most papers: Spherical Lenses, Spherical Mirrors, Lens Formula.
Year-wise question count
Asked in 9 of 10 years.
Most-asked concepts
Sorted by the number of papers a concept appeared in.
| Concept | Questions | Papers | Years |
|---|---|---|---|
| Spherical Lenses | 14 | 7 | 2026, 2024, 2020, 2019, 2018, 2017, 2016 |
| Spherical Mirrors | 11 | 6 | 2025, 2024, 2023, 2018, 2017, 2016 |
| Lens Formula | 3 | 3 | 2025, 2019, 2016 |
| Refraction Through Glass Slab | 3 | 2 | 2017, 2016 |
| Power of a Lens | 2 | 2 | 2025, 2017 |
| Mirror Formula | 1 | 1 | 2024 |
| Reflection of Light | 1 | 1 | 2020 |
| Refraction of Light | 1 | 1 | 2018 |
How to practise Light: Reflection and Refraction PYQs
- Start with the concepts at the top of the table. They have come back the most.
- Solve one year’s Light: Reflection and Refraction questions from the official PDF against the clock, then check the answer listed below.
- Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
- Once a concept is clean in two papers, move to the next. Then sit a full paper from the year pages.
Questions by year
Each line gives the question number and paper, type, concept, our one-line summary, with a link to the official PDF.
CBSE Class 102026
- Q.30 (Science (31/1/1)) · MCQ · Spherical Lenses: Object and image positions for same-size real image by convex lens PDF
- Q.33 (Science (31/1/1)) · Short answer · Spherical Lenses: Identify lens and object position from image formation figure PDF
- Q.38 (Science (31/1/1)) · Case-based · Spherical Lenses: Case on lens images, sign convention and combined power PDF
- Q.39 (Science (31/1/1)) · Long answer · Spherical Lenses: Convex lens image at 40 cm; diagram; power of lens combinations PDF
CBSE Class 102025
- Q.13 (Science (31/1/1)) · MCQ · Spherical Mirrors: Images by solar-furnace mirror and vehicle side mirror PDF
- Q.24 (Science (31/1/1)) · Short answer · Lens Formula: Image position for object 60 cm from concave lens f=30 cm PDF
- Q.31 (Science (31/1/1)) · Short answer · Spherical Mirrors: Ray diagrams for convex mirror with object at and before infinity PDF
- Q.36 (Science (31/1/1)) · Long answer · Power of a Lens: Lens of -2.5 D, magnification -2 and comparing lens convergence PDF
CBSE Class 102024
- Q.12 (Science (31/1/1)) · MCQ · Spherical Lenses: Object position for same-size real image by convex lens PDF
- Q.24 (Science (31/1/1)) · Short answer · Mirror Formula: Image position for object 10 cm from convex mirror f=15 cm PDF
- Q.39 (Science (31/1/1)) · Case-based · Spherical Mirrors: Case on three concave mirrors and image properties PDF
CBSE Class 102023
CBSE Class 102020
CBSE Class 102019
CBSE Class 102018
- Q.5 (Science (31/1)) · Short answer · Spherical Mirrors: Mirror always giving erect diminished image, with ray diagram PDF
- Q.11 (Science (31/1)) · Short answer · Refraction of Light: Laws of refraction and absolute refractive index PDF
- Q.26 (Science (31/1)) · Short answer · Spherical Lenses: Ray diagram and magnification for object 30 cm from lens f=20 cm PDF
CBSE Class 102017
- Q.4 (Science (31/1)) · Short answer · Spherical Lenses: Image characteristics for object 30 cm from concave lens f=15 cm PDF
- Q.16 (Science (31/1)) · Short answer · Power of a Lens: Lens giving erect diminished images; focal length from power 10 D PDF
- Q.22 (Science (31/1)) · Long answer · Spherical Lenses: Analyse u-v table of a convex lens: focal length, wrong reading, diagram PDF
- Q.23 (Science (31/1)) · Long answer · Spherical Mirrors: Mirror always giving diminished erect images; radius of curvature PDF
- Q.30 (Science (31/1)) · MCQ · Spherical Mirrors: Identify devices and focal lengths from ray diagrams PDF
- Q.31 (Science (31/1)) · MCQ · Spherical Lenses: Moving convex lens to sharpen a blurred image of distant object PDF
- Q.32 (Science (31/1)) · MCQ · Refraction Through Glass Slab: Relation among angles i, r and e for a glass slab PDF
- Q.36 (Science (31/1)) · Short answer · Spherical Lenses: Change in image as candle moves towards a convex lens PDF
CBSE Class 102016
- Q.16 (Science (31/1)) · Short answer · Spherical Mirrors: Locate object for magnification -1 image and shift with ray diagram PDF
- Q.22 (Science (31/1)) · Long answer · Spherical Mirrors: Concave mirror f=12 cm: range for erect image and ray diagrams PDF
- Q.23 (Science (31/1)) · Long answer · Lens Formula: Optical centre; image by diverging lens f=20 cm and its size PDF
- Q.30 (Science (31/1)) · MCQ · Spherical Mirrors: Nature of image of distant object by concave mirror on screen PDF
- Q.31 (Science (31/1)) · MCQ · Spherical Lenses: Adjusting convex lens to focus sunlight instead of candle PDF
- Q.32 (Science (31/1)) · MCQ · Refraction Through Glass Slab: Relation among angles i, r and e for a glass slab PDF
- Q.33 (Science (31/1)) · MCQ · Refraction Through Glass Slab: Identify correctly marked angles in a ray diagram PDF
- Q.36 (Science (31/1)) · Short answer · Spherical Lenses: Ray diagram for object 15 cm from convex lens f=10 cm PDF
Other Science chapters
- Chemical Reactions and Equations PYQs
- Acids, Bases and Salts PYQs
- Metals and Non-metals PYQs
- Carbon and its Compounds PYQs
- Periodic Classification of Elements PYQs
- Life Processes PYQs
- Control and Coordination PYQs
- How do Organisms Reproduce PYQs
- Heredity and Evolution PYQs
- The Human Eye and the Colourful World PYQs
- Electricity PYQs
- Magnetic Effects of Electric Current PYQs
- Sources of Energy PYQs
- Our Environment PYQs
- Sustainable Management of Natural Resources PYQs
FAQ
How many Light: Reflection and Refraction questions come in CBSE Class 10?
In the official papers we tagged: 4 in 2026, 4 in 2025, 3 in 2024, 2 in 2023, 2 in 2020, 2 in 2019, 3 in 2018, 8 in 2017 and 8 in 2016. Not asked in the other year. That is 36 questions in all, about 11% of Science.
Which Light: Reflection and Refraction topics repeat in CBSE Class 10?
Asked in the most papers: Spherical Lenses, Spherical Mirrors, Lens Formula. The concept table lists every one with its count.
Are these official CBSE Class 10 questions?
Yes. Every question is from an official CBSE Class 10 paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.