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Light MCQ Class 10: Master the concepts of light with our comprehensive CBSE Class 10 Science Chapter 10 MCQs. This chapter, “Light,” covers fundamental principles such as reflection, refraction, and the behavior of light in different mediums. Our set of MCQ questions with answers is meticulously designed to help students in grasping these optical concepts effortlessly. The collection of CBSE Class 10 MCQs includes a diverse array of topics, from laws of reflection to the formation of images by lenses.
Each question is prepared according to latest CBSE syllabus, ensuring thorough preparation for exams. Enhance your comprehension and performance with our Class 10 Science MCQs, crafted to facilitate enjoyable learning experiences.
Topics Covered in Science Chapter 10 Light Reflection and Refraction
CBSE Class 10 Science Chapter 10 Light is an important chapter for Class 10 students. This chapter explores fundamental principles governing light and its behavior. Here’s a brief overview of the topics covered:
- Definition and nature of light
- Laws of reflection and refraction
- Propagation of light
- Application of reflection and refraction laws
- Concepts of plane and spherical mirrors, along with their images
- Uses of spherical mirrors
- Mirror formula and magnification
- Total internal reflection
- Lens formula
- Principle of reversibility of light
To reinforce your learning, practicing with MCQs is highly beneficial. These MCQs provide a structured approach to testing your knowledge and identifying areas that may require further attention.
Science Chapter 10 Light MCQ Class 10 with Answers
Q1. Which of the following is true about light?
A) Light travels faster in air than in water.
B) Light cannot be refracted.
C) Light always travels in straight lines.
D) Light travels independently of the medium through which it passes.
Answer: C) Light always travels in straight lines.
Q2. What occurs to light as it transitions from air to glass?
A) It speeds up.
B) It slows down.
C) It reflects completely.
D) It disappears.
Answer: B) It slows down.
Q3. Which of the following objects emits its own light??
A) Moon
B) Book
C) Chair
D) Mirror
Answer: A) Moon
Q4. If a ray of light strikes a surface at 45 degrees, what is the angle of incidence?
A) 90 degrees
B) 45 degrees
C) 180 degrees
D) 0 degrees
Answer: B) 45 degrees
Q5. Which type of mirror always forms a virtual, upright, and diminished image?
A) Concave mirror
B) Convex mirror
C) Plane mirror
D) Spherical mirror
Answer: C) Plane mirror
Q6. What happens to the speed of light when it travels from a rarer medium to a denser medium?
A) It increases
B) It decreases
C) It remains the same
D) It becomes unpredictable
Answer: B) It decreases
Q7. Which of the following is an example of diffuse reflection?
A) Reflection from a polished mirror
B) Reflection from a smooth surface
C) Reflection from a rough surface
D) Reflection from a concave mirror
Answer: C) Reflection from a rough surface
Q8. What lens is used to correct farsightedness or hyperopia?
A) Concave lens
B) Convex lens
C) Bifocal lens
D) Cylindrical lens
Answer: B) Convex lens
Q9. What unit is used to measure the power of a lens?
A) Diopter
B) Meter
C) Kilogram
D) Newton
Answer: A) Diopter
Q10. What is the angle of refraction if a ray of light passes from water into air at an angle of 30 degrees and the angle of incidence is 45 degrees?
A) 30 degrees
B) 45 degrees
C) 60 degrees
D) 90 degrees
Answer: C) 60 degrees
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Science Chapter 10 Light MCQ Class 10 (Moderate to High Level)
Q1. In which medium does light travel fastest?
A) Air
B) Water
C) Glass
D) Diamond
Answer: A) Air
Q2. When light passes from air into a denser medium, which phenomenon occurs?
A) Total internal reflection
B) Diffuse reflection
C) Refraction
D) Dispersion
Answer: C) Refraction
Q3. What is the accurate statement regarding concave mirrors?
A) They consistently generate virtual, upright, and magnified images.
B) They consistently produce real, inverted, and diminished images.
C) When the object is positioned beyond the focus, they yield virtual, upright, and diminished images.
D) When the object is situated between the mirror and its focus, they produce real, inverted, and magnified images.
Answer: D) When the object is placed between the mirror and its focus, they produce real, inverted, and magnified images.
Q4. Which phenomenon is responsible for the formation of a rainbow:
A) Diffraction
B) Dispersion
C) Reflection
D) Refraction
Answer: B) Dispersion
Q5. A lens with a focal length of 10 cm is used to form an image of an object placed 15 cm in front of it. What type of lens is it and what is the nature of the image formed?
A) Convex lens, virtual and erect
B) Convex lens, real and inverted
C) Concave lens, real and inverted
D) Concave lens, virtual and erect
Answer: B) Convex lens, real and inverted
Q6. Which of the following phenomena does not involve the bending of light?
A) Formation of shadows
B) Dispersion of light
C) Formation of images by mirrors
D) Formation of images by lenses
Answer: A) Formation of shadows
Q7. The speed of light in a vacuum is approximately:
A) 3 × 10^8 m/s
B) 3 × 10^7 m/s
C) 3 × 10^6 m/s
D) 3 × 10^5 m/s
Answer: A) 3 × 10^8 m/s
Q8. What type of lens is utilized to rectify myopia or nearsightedness?
A) Convex lens
B) Concave lens
C) Bifocal lens
D) Cylindrical lens
Answer: B) Concave lens
Q9. When an object is placed at the center of curvature of a concave mirror, the image formed is:
A) Virtual, erect, and magnified
B) Virtual, erect, and diminished
C) Real, inverted, and magnified
D) Real, inverted, and diminished
Answer: D) Real, inverted, and diminished
Q10. What is the main reason behind the sky appearing blue during the daytime?
A) Diffraction
B) Dispersion
C) Rayleigh scattering
D) Total internal reflection
Answer: C) Rayleigh scattering
Benefits of CBSE Class 10 Science Chapter 10 Light MCQs
- MCQs for Class 10 reinforce concepts like reflection and refraction practically.
- Solving MCQs helps apply theoretical knowledge and boosts problem-solving skills.
- They cover various topics, offering a comprehensive assessment.
- Students can self-evaluate progress, identifying strengths and weaknesses.
- Regular MCQ practice enhances exam readiness and boosts confidence.
