This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 11 Light – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In which form is light emitted A) Particle. B) Wave. C) All the above. D) None of the above. Show Answer Correct Answer: A) Particle. 2. What does it mean to reflect? A) Bounce off. B) Bend. C) Refract. D) Energy. Show Answer Correct Answer: A) Bounce off. 3. A rainbow can be seen in the sky when the sun is A) In front of you. B) Behind you. C) Overhead. D) Only at the time of sunrise. Show Answer Correct Answer: B) Behind you. 4. An object is placed at a concave mirror's center of curvature. The image produced by the mirror is located A) Out beyond the center of curvature. B) At the center of curvature. C) Between the center of curvature and the focal point. D) At the focal point. Show Answer Correct Answer: B) At the center of curvature. 5. What is a source of light? A) An object that is near the sun. B) An object that emits light. C) All the above. D) None of the above. Show Answer Correct Answer: B) An object that emits light. 6. The glass front of the mirror is an opaque. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 7. ..... and ..... eclipse are formation of shadow in nature A) Solar, lunar. B) Shadow. C) Don't know. D) Not Sure. Show Answer Correct Answer: A) Solar, lunar. 8. If the pupil is enlarged, it means? A) Person is in a dark room. B) Person is in open sunlight. C) Person is in normal lighting. D) Person is blind. Show Answer Correct Answer: A) Person is in a dark room. 9. Which type of waves are used in broadcasting? A) Radio waves. B) Infrared rays. C) X-rays. D) None of the above. Show Answer Correct Answer: A) Radio waves. 10. Which is an example of a lighter than air aircraft? A) Parachute. B) Hindenberg. C) All the above. D) None of the above. Show Answer Correct Answer: B) Hindenberg. 11. Which of these best demonstrates the reflection of light? (5.6C) A) Looking through the glass of a large window. B) Looking at an image formed on a silver spoon. C) Looking at a lightbulb that is glowing. D) Looking at a star on a clear night. Show Answer Correct Answer: B) Looking at an image formed on a silver spoon. 12. A spherical mirror and a thin spherical lens each have a focal length-15 cm. Mirror and lens are likely to be: A) Both concave. B) Both convex. C) Mirror is concave and lens is convex. D) Mirror is convex and lens is concave. Show Answer Correct Answer: A) Both concave. 13. Which one is an example of light being reflected? A) Seeing yourself in a mirror. B) Lighting a candle. C) All the above. D) None of the above. Show Answer Correct Answer: A) Seeing yourself in a mirror. 14. Dentist use to see an enlarged image of the teeth is ..... mirror A) Plane. B) Convex. C) Concave. D) None of these. Show Answer Correct Answer: C) Concave. 15. Light rays from any light source travel outward in all directions along a straight path until they hit something. which of the following best represents what occurs when light rays hit a glass of water? A) The light rays will pass straight through from air to water. B) The water absorbs the light, and it will no longer be seen. C) The light rays will bend at the boundary of air and water. D) The surface of the water will reflect the light off the water. Show Answer Correct Answer: C) The light rays will bend at the boundary of air and water. 16. A material that does not light pass through A) Transparent. B) Translucent. C) Jopalaye. D) Solid. Show Answer Correct Answer: C) Jopalaye. 17. If the focal length of a lens is doubled, the power of lens ..... A) Is doubled. B) Remains same. C) Becomes four times. D) Is halved. Show Answer Correct Answer: D) Is halved. 18. The side view mirrors on your car help shrink the image on both sides of the car, allowing you to see a larger field of view. What type of mirror is this? A) A convex mirror. B) A concave mirror. C) A convex lens. D) A concave lens. Show Answer Correct Answer: A) A convex mirror. 19. A traffic light is often used to- A) Control traffic on streets. B) Control air pollution. C) Take rest. D) None of the above. Show Answer Correct Answer: A) Control traffic on streets. 20. ..... [Nicotinamide adenine dinucleotide phosphate] accepts and holds two high-energy electrons, along with a hydrogen ion. A) NADPH. B) NADP+. C) ATP. D) ADP. Show Answer Correct Answer: B) NADP+. 21. When light strikes a transparent material, most of the light is reflected. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. The ability of an eye to continue to see an image for a very short period of time even after the object is removed is called A) Reflection of light. B) Dispersion of light. C) Persistence of light. D) Accommodation. Show Answer Correct Answer: C) Persistence of light. 23. Your clothing is transparent and allows all light to pass through A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. What type of wave is Light A) Electromagnetic wave. B) Longitudinal wave. C) Transverse wave. D) Photon wave. Show Answer Correct Answer: A) Electromagnetic wave. 25. Lens are widely used in A) Microscope. B) Telescope. C) Spectacles. D) All of these. Show Answer Correct Answer: D) All of these. ← 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