This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 11 Light – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 24 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... is a copy of the object formed by reflected or refracted rays of light A) Reflection. B) Refraction. C) Object. D) Image. Show Answer Correct Answer: D) Image. 2. If the angle of incidence is 45 degree, what is the angle between the incident ray and reflecting surface A) 45. B) 90. C) 180. D) None of the above. Show Answer Correct Answer: A) 45. 3. What happens to light passing through a prism? A) It goes right through it. B) It bends and the light separates. C) It bounces off it. D) It goes around it. Show Answer Correct Answer: B) It bends and the light separates. 4. When a light ray strikes a smooth, flat surface, what is the relationship between the angle of incidence and the angle of reflection? A) They are equal. B) The angle of incidence is twice that of the angle of reflection. C) The angle of reflection is twice that of the angle of incidence. D) They combine to add up to 180$^{o}$. Show Answer Correct Answer: A) They are equal. 5. Its ability to increase the confluence of the lens A) Will increase. B) Will be reduced. C) Often decreases later. D) Decreases less then then increases. Show Answer Correct Answer: B) Will be reduced. 6. When a pair of mirrors is placed parallel to each other, how many images are formed? A) 0. B) 2. C) Infinite. D) 5. Show Answer Correct Answer: C) Infinite. 7. What type of lens is this if its power is-5.0D?Find f. A) 25 cm concave lens. B) 50cm, convex lens. C) 50cm, concave lens. D) 25cm convex lens. Show Answer Correct Answer: B) 50cm, convex lens. 8. Kaleidoscope consist of three long strips of plane mirror placed at ..... angle forming a hollow prism A) 45 degree. B) 60 degree. C) 90 degree. D) Any. Show Answer Correct Answer: B) 60 degree. 9. Law of reflection state that-The angle of incidence is ..... to the angle of reflection. A) Equal. B) Double. C) Half. D) None of the above. Show Answer Correct Answer: A) Equal. 10. Another name for a material that does not emit light A) Transparent. B) Non-luminous object. C) Light reflector. D) Opaque. Show Answer Correct Answer: C) Light reflector. 11. A dolphin makes a noise underwater that is too high-pitched for humans to hear. What type of wave is this? A) Water. B) Electromagnetic. C) Mechanical. D) Microwave. Show Answer Correct Answer: C) Mechanical. 12. The bending of light is called ..... A) Reflection. B) Refraction. C) Opaque. D) Spectrum. Show Answer Correct Answer: B) Refraction. 13. The ray of light which falls on the mirror's reflecting surface is called the A) Incident ray. B) Reflected ray. C) Normal. D) Falling ray. Show Answer Correct Answer: A) Incident ray. 14. Cataract can be cured by using A) Concave lens. B) Convex lens. C) Both. D) Surgery. Show Answer Correct Answer: D) Surgery. 15. ..... is an artificial light A) Sun. B) Moon. C) Fireflies. D) Volcano. Show Answer Correct Answer: B) Moon. 16. When this occurs, light rays pass from one transparent medium to another transparent medium. A) Absorbtion. B) Transmission. C) Relfection. D) Refraction. Show Answer Correct Answer: D) Refraction. 17. Habib looks around his classroom at different objects. Which object reflects almost all of the light that strikes it? A) A white poster board. B) Clear window class. C) A red book cover. D) Black construction paper. Show Answer Correct Answer: A) A white poster board. 18. Which shows the path light travels to help you see something? A) Object to lamp to eye. B) Eye to lamp to object. C) Object to eye to lamp. D) Lamp to object to eye. Show Answer Correct Answer: D) Lamp to object to eye. 19. A dark area of surface created by an object blocking light. A) Shadow. B) Opaque. C) Transparent. D) Reflect. Show Answer Correct Answer: A) Shadow. 20. These are all colours of spectrum except A) Indigo. B) Blue. C) Purple. D) Green. Show Answer Correct Answer: C) Purple. 21. The size of a reflection A) The greatest truth is upside down. B) The smallest of myth. C) The smallest is the truth is inverted. D) The greatest truth is straightforward. Show Answer Correct Answer: C) The smallest is the truth is inverted. 22. What makes objects visible? A) The absorption of light by objects. B) The reflected light from the object. C) The total internal reflection taking place in an object. D) None of the above. Show Answer Correct Answer: B) The reflected light from the object. 23. The curved shining surface of a ..... acts as a mirror. The most common example of a curved mirror is a spherical mirror. A) Spoon. B) Cup. C) Plane Mirror. D) Bowl. Show Answer Correct Answer: A) Spoon. 24. The energy of an electromagnetic wave is related to its amplitude. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 25. Convex mirror is used as a rear view mirror because ..... A) If forms an erect image. B) It forms the diminished image. C) It forms the virtual image. D) All the above reasons. Show Answer Correct Answer: D) All the above reasons. ← PreviousNext →Related QuizzesClass 7 Science Chapter 11 Light Quiz 1Class 7 Science Chapter 11 Light Quiz 2Class 7 Science Chapter 11 Light Quiz 3Class 7 Science Chapter 11 Light Quiz 4Class 7 Science Chapter 11 Light Quiz 5Class 7 Science Chapter 11 Light Quiz 6Class 7 Science Chapter 11 Light Quiz 7Class 7 Science Chapter 11 Light Quiz 8Class 7 Science Chapter 11 Light Quiz 9Class 7 Science Chapter 11 Light Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books