This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 11 Light – Quiz 44 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 44 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is/are the products of light independent reaction? A) ATP. B) NADPH. C) H2O. D) C6H12O6. E) Pyruvate. Show Answer Correct Answer: D) C6H12O6. 2. Moon produces its own light A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 3. When a ray travels from rarer to denser it will bend A) Away from normal. B) Towards the normal. C) Through the normal. D) At the normal. Show Answer Correct Answer: B) Towards the normal. 4. What two colors make purple? A) Red and White. B) Red and Blue. C) Red and Green. D) Red and Black. Show Answer Correct Answer: B) Red and Blue. 5. Objects that ABSORB all colors of light will appear ..... A) White. B) Black. C) Multi-colored. D) Gray. Show Answer Correct Answer: B) Black. 6. ..... enables us to view our surrounding A) Convex mirror. B) Air. C) Light. D) None of the above. Show Answer Correct Answer: C) Light. 7. If a ray of light strikes the surface of separation at ..... degrees, the ray goes undeviated. A) 180$^{0}$. B) 90$^{0}$. C) 360$^{0}$. D) 120$^{0}$. Show Answer Correct Answer: B) 90$^{0}$. 8. An object placed 3 m from a plane mirror is shifted by 0.4 m away from the mirror. What is the new distance between the object and its image? A) 6.4 m. B) 6.8 m. C) 6 m. D) 5.2 m. Show Answer Correct Answer: B) 6.8 m. 9. Function of ciliary muscles is to A) Dilate the eye. B) Adjust the focus of eye lens. C) Absorb the light. D) Reflect the light. Show Answer Correct Answer: B) Adjust the focus of eye lens. 10. In the formation of a rainbow, what acts as tiny prisms? A) Droplets of rain. B) Clouds. C) Sky. D) None of the above. Show Answer Correct Answer: A) Droplets of rain. 11. Light goes and comes back in a A) Staright line. B) No it does not. C) Non of the above. D) None of the above. Show Answer Correct Answer: A) Staright line. 12. The laws of reflection hold good for A) Plane mirror only. B) Concave mirror only. C) Convex mirror only. D) All mirrors irrespective of their shape. Show Answer Correct Answer: D) All mirrors irrespective of their shape. 13. As the frequency of light increases, the wavelength becomes shorter. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 14. An image formed by a concave lens can be obtain on a screen A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. Light moves in A) Waves. B) Rays. C) All the above. D) None of the above. Show Answer Correct Answer: B) Rays. 16. Refractive index of water is 4/3, the apparent depth is A) 3/4th of any liquid. B) 3/4th of the real depth. C) It is the same. D) None of these. Show Answer Correct Answer: B) 3/4th of the real depth. 17. Which of the following letters will be seen without any change in a plane mirror? A) S. B) T. C) L. D) P. Show Answer Correct Answer: B) T. 18. The angle between incident ray and reflected ray is 60$^\circ$. What is the value of angle of incidence? A) 30. B) 35. C) 120. D) 60. Show Answer Correct Answer: A) 30. 19. Which place is periscopes not used? A) Tanks. B) Submarines. C) War trenches. D) Swimming pool. Show Answer Correct Answer: D) Swimming pool. 20. Diffused reflection gives a sharp image. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 21. Objects that do not have their own light are called Luminous Objects. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. Which material is opaque? A) Brick. B) Water. C) Tissue Paper. D) Glass. Show Answer Correct Answer: A) Brick. 23. Splits water (H$_{2}$O) into hydrogen (H) and oxygen (O) atoms. Light dependent or light independent stage? A) Light independent stage. B) Light dependent stage. C) All the above. D) None of the above. Show Answer Correct Answer: B) Light dependent stage. 24. Which of the following changes occur when you walk out of bright sunshine into poorly lit room? A) The pupil becomes larger. B) The lens becomes thicker. C) The ciliary muscle relaxes. D) The pupil becomes smaller. Show Answer Correct Answer: A) The pupil becomes larger. 25. Cardboard, wood, and books are some examples of ..... objects. A) Opaque. B) Translucent. C) Transparent. D) Reflection. Show Answer Correct Answer: A) Opaque. ← 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