This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 11 Light – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 19 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Jace wants to make a shadow on the wall in front of him. Which is the best way for Jace to make the shadow? A) Jace should put a lamp in front of him. B) Jace should stand near an open window. C) Jace should stand between the wall and a lamp. D) Jace should turn off all of the lights in the room. Show Answer Correct Answer: C) Jace should stand between the wall and a lamp. 2. A dentist uses a small dental mirror to help magnify teeth in your mouth. 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: B) A concave mirror. 3. What is the start weight of IdeaPad Slim 3/3i? A) 1.79 Kg. B) 1.85 Kg. C) 1.69 Kg. D) 2.2 Kg. Show Answer Correct Answer: B) 1.85 Kg. 4. Another name for a light source is A) Luminous object. B) Non-luminous object. C) Reflector. D) Opaque. Show Answer Correct Answer: A) Luminous object. 5. An object 4 cm high is placed at 15 cm in front of a convex mirror having a radius ofcurvature of 10 cm. Then the image formed is at a distance of A) 12.5 cm. B) 5 cm. C) 20 cm. D) 7.5 cm. Show Answer Correct Answer: D) 7.5 cm. 6. If a black and white car were in the parking lot all day. Compare the temperatures of the two cars. A) The black car would be cooler. B) The white car would be hotter. C) The black car would be hotter. D) They would be the same. Show Answer Correct Answer: C) The black car would be hotter. 7. Which of the following is required for the formation of shadow? A) Source of light and an opaque object. B) Source of light and a screen. C) An opaque object and a screen. D) Source of light. a screen and an opaque object. Show Answer Correct Answer: D) Source of light. a screen and an opaque object. 8. If an object is placed at a distance of 0.5 m in front of a plane mirror, the distance between the object and the image formed by the mirror will be A) Or. B) 1 m. C) 0.5 m. D) 0.25 m. Show Answer Correct Answer: B) 1 m. 9. How do we see objects which does not emit light? A) Light from the light source enters our eyes. B) Light from light source reflects off the object then enters our eyes. C) Our eyes can see the object because there is light. D) None of the above. Show Answer Correct Answer: B) Light from light source reflects off the object then enters our eyes. 10. The number of images formed when the angle between two mirrors is 24 degree is A) 18. B) 20. C) 16. D) 14. Show Answer Correct Answer: D) 14. 11. The color violet has the highest energy and frequency. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 12. What is a good example of an object that shows reflections? A) Beach towel. B) Brick wall. C) Mirror. D) Camera. Show Answer Correct Answer: C) Mirror. 13. Which of the following is not a source of light? A) The Sun. B) The Moon. C) Torch. D) None of the above. Show Answer Correct Answer: B) The Moon. 14. The angle of incidence is equal to the angle of reflection A) Law of light. B) Law of reflection. C) Law of refraction. D) Law of incidence. Show Answer Correct Answer: B) Law of reflection. 15. Mirror is a A) Regular reflection. B) Diffused reflection. C) All the above. D) None of the above. Show Answer Correct Answer: A) Regular reflection. 16. If yellow light shines on a green object A) It will appear red. B) It will appear black. C) It will appear green. D) It will appear blue. Show Answer Correct Answer: C) It will appear green. 17. A ..... shadow is formed by your notebook because it is ..... A) Light, translucent. B) Dark, translucent. C) Dark, opaque. D) Dark, transparent. Show Answer Correct Answer: C) Dark, opaque. 18. Real image is always A) Erect. B) Real. C) Inverted. D) Virtual. Show Answer Correct Answer: C) Inverted. 19. A lens will ..... light A) Reflect. B) Refract. C) All the above. D) None of the above. Show Answer Correct Answer: B) Refract. 20. How is light produced? A) When a chemical reaction takes place. B) When reactions including nucleaus take place. C) When reaction gives off discrete packages. D) None of the above. Show Answer Correct Answer: C) When reaction gives off discrete packages. 21. Which surface would reflect light the best? A) Light coloured and smooth. B) Dark coloured and smooth. C) Dark coloured and rough. D) None of the above. Show Answer Correct Answer: A) Light coloured and smooth. 22. When an object is kept in between two mirrors placed perpendicular to each other, how many images of the object are formed? A) 2. B) 3. C) 5. D) 0. Show Answer Correct Answer: B) 3. 23. Fireflies have artificial source of light A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. Which of the following produces light energy? A) A mirror. B) A campfire. C) A book. D) A horse. Show Answer Correct Answer: B) A campfire. 25. What are transparent objects? A) Objects that cannot let light pass through. B) Objects that can let little light pass through. C) Objects that can let light pass through. D) None of the above. Show Answer Correct Answer: C) Objects that can let light pass through. ← 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