NCERT MCQ Solutions for Class 10 Science Chapter 9 Light Reflection and Refraction

NCERT MCQ Solutions for Class 10 Science Chapter 9 Light Reflection and Refraction for Session 2025–26 Board Exams. It provides accurate, concept-based answers to all important multiple-choice questions. MCQ objective question solutions help students grasp key topics like mirror types, lens behavior, image formation and refraction laws easily. With simplified explanations and logical reasoning, these MCQs are ideal for self-practice and exam revision. MCQs are aligned with the latest CBSE curriculum and they ensure strong conceptual clarity and better performance in the 10th Science exams.
Class 10 Science Chapter 9 NCERT Solutions
Class 10 Multiple Choice Questions
Class 10 Science MCQ

Class 10 Science Chapter 9 MCQ Solutions

Q1. Which phenomenon causes a pencil to appear bent in water?

[A]. Dispersion
[B]. Refraction
[C]. Scattering
[D]. Reflection

Q2. What is the angle of incidence when a ray of light falls perpendicularly on a surface?

[A]. 0°
[B]. 45°
[C]. 90°
[D]. 180°

Q3. The image formed by a plane mirror is

[A]. Real and erect
[B]. Virtual and inverted
[C]. Real and inverted
[D]. Virtual and erect

Q4. A concave mirror is also known as

[A]. Converging mirror
[B]. Diverging mirror
[C]. Convex mirror
[D]. Plane mirror

Class 10 Science Chapter 9 MCQ Online Test

Q5. The unit of focal length is

[A]. Newton
[B]. Ampere
[C]. Meter
[D]. Watt

Q6. What is the sign of focal length for a concave lens?

[A]. Undefined
[B]. Negative
[C]. Zero
[D]. Positive

Q7. The mirror formula is

[A]. f = u + v
[B]. v = fu/(f – u)
[C]. 1/u = 1/f + 1/v
[D]. 1/f = 1/v + 1/u

Q8. Which mirror is used in a solar furnace?

[A]. Plane mirror
[B]. Convex mirror
[C]. Concave mirror
[D]. None

Understanding Light in Class 10 Science Chapter 9 MCQs

As a Science teacher, let’s begin by exploring why light is so important. Everything we see—our friends, books, the blackboard or even the stars—can only be seen because of light. Light travels in straight lines and reflects off surfaces. This reflection helps us understand how mirrors work. In Class 10 Science Chapter 9 – Light: Reflection and Refraction, we study how light behaves when it hits a surface or moves between different materials like air and glass. This forms the base for real-world applications like headlights, spectacles, microscopes and cameras. Now, why are MCQs from this chapter so important? MCQs help you quickly test your basic understanding of core ideas like mirror types, focal length and real vs virtual images. Practicing these strengthens your speed and accuracy in competitive exams, school tests and board assessments. These objective questions also teach you to apply formulas and laws like the mirror formula and law of reflection, which are essential for solving numerical problems.

Q9. When light travels from air into glass, it

[A]. Slows down
[B]. Remains same
[C]. Speeds up
[D]. Disappears

Q10. Which lens can correct myopia?

[A]. Convex lens
[B]. Cylindrical lens
[C]. Concave lens
[D]. Plane lens

Q11. The principal focus of a concave mirror lies

[A]. At infinity
[B]. At the pole
[C]. Behind the mirror
[D]. In front of the mirror

Q12. What happens when a ray passes through the centre of curvature of a mirror?

[A]. It reflects back on the same path
[B]. It bends sharply
[C]. It diverges
[D]. It refracts
Class 10 Science Chapter 9 MCQ with Answers

Q13. Which lens is thicker at the edges?

[A]. Bifocal
[B]. Cylindrical
[C]. Bifocal
[D]. Concave

Q14. Real images formed by concave mirrors are always

[A]. Virtual and erect
[B]. Erect and enlarged
[C]. Erect and diminished
[D]. Inverted and can be reduced or enlarged

Q15. A convex mirror always forms an image that is

[A]. Inverted and real
[B]. Diminished and real
[C]. Virtual and erect
[D]. Real and enlarged

Q16. If an object is placed at focus of a concave mirror, the image is formed at

[A]. Infinity
[B]. Between focus and pole
[C]. Centre of curvature
[D]. On the object itself
Importance of Class 10 Science Chapter 9 MCQ MCQs in Lenses

Moving ahead, let’s talk about refraction, which happens when light bends while moving from one medium to another—like from air into water. This bending causes phenomena like a pencil appearing bent in water or the sparkle of a diamond. Class 10 Science Chapter 9 also introduces lenses, which are pieces of glass or plastic that refract light to form images. Lenses are of two types—convex (converging) and concave (diverging)—each forming different types of images. Knowing where and how the image forms based on object position is required, especially in exams. That’s why MCQs based on lenses and refraction are important. They often ask about image characteristics, lens types, sign conventions and magnification formulas. Solving such questions helps you differentiate between real, virtual images and understand concepts like power of a lens and refractive index. Regular practice of MCQs also improves your learning and ensures you can answer efficiently under time pressure during your board exam.

Q17. Which device uses total internal reflection?

[A]. Microscope
[B]. Barometer
[C]. Optical fiber
[D]. Telescope

Q18. What is lateral inversion?

[A]. Right-left reversal of image
[B]. Up-down reversal of image
[C]. Displacement of image
[D]. Enlargement of image

Q19. Power of a lens is measured in

[A]. Candela
[B]. Diopters
[C]. Hertz
[D]. Meters

Q20. Convex mirrors are used as rearview mirrors because

[A]. They are expensive
[B]. They give large images
[C]. They cover wider field of view
[D]. They produce real images

How can solving Class 10 Science Chapter 9 MCQ boost the exam score?

Solving Class 10 Science Chapter 9 MCQ is one of the smartest ways to prepare for exams. These multiple-choice questions focus on key concepts like image formation, mirror and lens types, focal length and light behavior. By practising them regularly, you sharpen your understanding and improve your speed and accuracy. MCQs also help you quickly identify which areas you’re strong in and which need more revision. Since board exams often include conceptual and numerical-based MCQs, practising them helps reduce silly mistakes, boosts confidence and prepares you to answer even tricky questions with ease.

What kind of questions can I expect in Class 10 Science Chapter 9 MCQ?

In the Class 10 Science Chapter 9 MCQ section, questions usually test both theoretical understanding and practical application. You may be asked to identify image properties (real, virtual, erect, inverted), select correct ray diagrams or apply formulas like the mirror or lens formula. Some MCQs are based on everyday observations, like the use of concave mirrors in torches or convex mirrors in vehicles. Others require calculations involving focal length, magnification or refractive index. These questions are often concept-based but can also include diagrams or short numerical, making them both scoring and conceptually rich.

What are the best ways to prepare for Class 10 Science Chapter 9 MCQ effectively?

To prepare well for Class 10 Science Chapter 9 MCQ questions, start by understanding the concepts of reflection and refraction thoroughly. Make sure you are clear about key terms such as pole, focus, principal axis, radius of curvature and refractive index. Draw ray diagrams repeatedly to visualize image formation clearly. Next, solve a variety of MCQs, especially those that mix concepts with real-life applications. Time yourself while practising to build speed. After solving, always review the explanations to understand why the correct answer works—this helps you avoid repeating the same mistake later.