CBSE Class 8 Science Light MCQs with Answers

Light Class 8 MCQ: Looking to strengthen your understanding of CBSE Class 8 Science Chapter 16 – Light? Practicing well-structured MCQ questions for Class 8 Science Chapter 16 Light with answers is one of the smartest ways to revise important concepts and improve exam performance. These Light Class 8 MCQs with answers are designed as per the latest CBSE exam pattern and based on CBSE syllabus, making them perfect for quick self-assessment and revision.

Students can easily practice the Class 8 Science Light MCQs and test their preparation for class tests and final exams, helping them gain confidence and clear concepts step by step.

Light Class 8 MCQ

CBSE Class 8 Science Chapter 16 – Light is an important chapter that helps students understand the nature, behavior, and properties of light. This chapter covers key concepts such as the laws of reflection, regular and diffused reflection, lateral inversion, formation of images by plane mirrors, uses of mirrors, and the structure of the human eye. Students also learn about dispersion of light, care of the eyes, and real-world applications of these concepts.

This chapter not only builds strong scientific thinking but also plays an important role in CBSE Class 8 Science exams, as questions from this topic often carry 4 to 6 marks, including both theory and objective types. To help students revise and test their understanding, we have provided Light Class 8 MCQ. These MCQ questions for Class 8 Science Chapter 16 Light are great for practice, self-assessment, and improving confidence before exams.

Also Check: NCERT Solutions for Class 8 Science Chapter 16 Light

CBSE Class 8 Science Chapter 16 Light MCQ with Answers

1. Light always travels in:
A) Circular path
B) Straight line
C) Zigzag path
D) Spiral path
Answer: B) Straight line

2. The bouncing back of light after hitting a polished surface is called:
A) Refraction
B) Absorption
C) Dispersion
D) Reflection
Answer: D) Reflection

3. The angle between the incident ray and the normal is known as:
A) Angle of deviation
B) Angle of incidence
C) Angle of reflection
D) Critical angle
Answer: B) Angle of incidence

4. The angle of reflection is always equal to:
A) 90°
B) Angle of incidence
C) Zero
D) Random value
Answer: B) Angle of incidence

5. Which type of reflection occurs from a smooth and polished surface?
A) Diffused reflection
B) Regular reflection
C) Absorption
D) Refraction
Answer: B) Regular reflection

6. The image formed by a plane mirror is:
A) Real and inverted
B) Virtual and upright
C) Upside down
D) Reduced in size
Answer: B) Virtual and upright

7. The change in the direction of light when it passes from one medium to another is called:
A) Reflection
B) Refraction
C) Dispersion
D) Scattering
Answer: B) Refraction

8. Lateral inversion means:
A) Image size changes
B) Left appears right and right appears left
C) Image becomes inverted vertically
D) Image disappears
Answer: B) Left appears right and right appears left

9. The phenomenon responsible for the formation of a rainbow is:
A) Reflection
B) Refraction and Dispersion
C) Scattering
D) Diffusion
Answer: B) Refraction and Dispersion

10. A periscope works on the principle of:
A) Diffused reflection
B) Regular reflection using mirrors
C) Refraction
D) Scattering
Answer: B) Regular reflection using mirrors

11. The device used to see around corners is called:
A) Microscope
B) Periscope
C) Telescope
D) Kaleidoscope
Answer: B) Periscope

12. Dispersion of light produces:
A) Monochrome light
B) A spectrum of colors
C) Only blue light
D) Reflected light
Answer: B) A spectrum of colors

13. Which part of the human eye controls the amount of light entering it?
A) Retina
B) Lens
C) Iris
D) Cornea
Answer: C) Iris

14. The eye lens is held in position by:
A) Iris
B) Retina
C) Ciliary muscles
D) Cornea
Answer: C) Ciliary muscles

15. The retina contains light-sensitive cells called:
A) Cones and Rods
B) Iris and Pupil
C) Lenses and Cornea
D) Optic nerves
Answer: A) Cones and Rods

16. The small opening in the eye that controls light entry is called:
A) Retina
B) Lens
C) Iris
D) Pupil
Answer: D) Pupil

17. The mirror used by dentists to examine teeth is:
A) Plane mirror
B) Concave mirror
C) Convex mirror
D) None of the above
Answer: B) Concave mirror

18. Light travels fastest in:
A) Air
B) Glass
C) Vacuum
D) Water
Answer: C) Vacuum

19. The image formed on the retina is:
A) Virtual and upright
B) Real and inverted
C) Virtual and enlarged
D) Real and upright
Answer: B) Real and inverted

20. Which device uses the reflection of light to produce symmetrical patterns?
A) Periscope
B) Kaleidoscope
C) Microscope
D) Stethoscope
Answer: B) Kaleidoscope

21. The mirror used in car side-view mirrors is:
A) Plane mirror
B) Concave mirror
C) Convex mirror
D) Combination mirror
Answer: C) Convex mirror

22. Which of these surfaces causes diffused reflection?
A) Smooth glass
B) Polished steel
C) Rough wall
D) Mirror
Answer: C) Rough wall

23. What part of the eye sends visual information to the brain?
A) Lens
B) Retina
C) Optic nerve
D) Iris
Answer: C) Optic nerve

24. The bending of light around sharp edges is called:
A) Diffraction
B) Dispersion
C) Reflection
D) Refraction
Answer: A) Diffraction

25. The phenomenon that causes stars to appear to twinkle is:
A) Dispersion
B) Reflection
C) Atmospheric refraction
D) Echo
Answer: C) Atmospheric refraction

26. When light is reflected from a plane mirror, the image appears:
A) Enlarged
B) Real
C) Same size as the object
D) Reduced in size
Answer: C) Same size as the object

27. When the light ray falls perpendicularly on the surface, the angle of incidence is:
A) 90°
B) 0°
C) 45°
D) Undefined
Answer: B) 0°

28. The condition for the formation of an echo is:
A) Distance less than 10 meters
B) Distance more than 17 meters
C) Smooth walls only
D) Light should be bright
Answer: B) Distance more than 17 meters

29. When light passes from air into water, its speed:
A) Increases
B) Decreases
C) Remains the same
D) Doubles
Answer: B) Decreases

30. Which mirror can form both real and virtual images?
A) Plane mirror
B) Convex mirror
C) Concave mirror
D) Transparent glass
Answer: C) Concave mirror