This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Light > Class 7 Science Chapter 11 Light – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 12 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What does Newton's Disc depict A) Spectrum of Light. B) Rectillinear Propagation of Light. C) Wavelenth of Light. D) None of the above. Show Answer Correct Answer: A) Spectrum of Light. 2. How Many Colors Does Rainbow (out of the box) A) 8. B) 1. C) 2. D) 7. Show Answer Correct Answer: D) 7. 3. Which of the following is correct about eye lens A) Hard, convex, living. B) Soft, convex, non living. C) Flexible, concave, living cell. D) Flexible, convex, living cell. Show Answer Correct Answer: D) Flexible, convex, living cell. 4. SUN, STARS AND FIREFLY ARE ..... SOURCES OF LIGHT A) ARTIFICIAL. B) NATURAL. C) MAN-MADE. D) None of the above. Show Answer Correct Answer: B) NATURAL. 5. The bouncing back of light rays when they fall on a shiny surface is called ..... of light. A) Lateral inversion. B) Rectilinear propagation. C) Splitting. D) Reflection. Show Answer Correct Answer: D) Reflection. 6. Which of the following is the best reflector of light? A) Prism. B) Mirror. C) Lens. D) Microscope. Show Answer Correct Answer: B) Mirror. 7. Beam of light striking a reflecting surface is called ..... A) Reflecting ray. B) Normal ray. C) Incident ray. D) Refracted ray. Show Answer Correct Answer: C) Incident ray. 8. What is not a characteristic of a rear view mirror in a car? A) Concave in nature. B) They give a virtual image. C) Convex in nature. D) They have wider field of coverage. Show Answer Correct Answer: A) Concave in nature. 9. Sources of Light can be natural or artificial. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. The branch of physics which deals with the study of light is called ..... A) Acoustics. B) Optics. C) Statics. D) Mechanics. Show Answer Correct Answer: B) Optics. 11. While playing hide and seek I was able to find my friend easily because I could see right through the window into the kitchen where she was hiding. That means the window is ..... A) Opaque. B) Transparent. C) Translucent. D) None of the above. Show Answer Correct Answer: B) Transparent. 12. Which describes a convex lens? A) Thicker in the middle than on the edges. B) Thicker on the edges than in the middle. C) Triangular in shape. D) More transparent in the middle. Show Answer Correct Answer: A) Thicker in the middle than on the edges. 13. It is a bundle of nerves beginning from the brain and entering the eyeball from behind. A) Sclera. B) Optic nerve. C) Iris. D) Ciliary muscles. Show Answer Correct Answer: B) Optic nerve. 14. Diffused / irregular reflection takes place from A) Rough surface. B) Smooth surface. C) All the above. D) None of the above. Show Answer Correct Answer: A) Rough surface. 15. The bending of light as it passes through different materials A) Absorption. B) Refraction. C) Reflection. D) Transfer. Show Answer Correct Answer: B) Refraction. 16. The image which is formed behind the mirror A) Inverted Image. B) Virtual Image. C) Real Image. D) Blur Image. Show Answer Correct Answer: B) Virtual Image. 17. Wax paper or a foggy window is an example of what type of material. A) Transparent. B) Translucent. C) Opaque. D) None of the above. Show Answer Correct Answer: B) Translucent. 18. Transparent material that separates white light into its component colors by refraction A) Convex. B) Concave. C) Prism. D) Wax paper. Show Answer Correct Answer: C) Prism. 19. We are not able to see the candel flame through a bent pipe beacuse A) Of the colour of the produced by the flame. B) Light travels along a straight line. C) Of the absence of convex mirror. D) None of the above. Show Answer Correct Answer: B) Light travels along a straight line. 20. Two plane mirrors are inclined to each other such that a ray of light incident on the firstmirror and parallel to the second is reflected from the second mirror parallel to the firstmirror. The angle between the two mirrors is A) Equal to the angle of refraction. B) Equal to the angle of deflection. C) Equal to the angle of incidence. D) Equal to the angle of reflection. Show Answer Correct Answer: C) Equal to the angle of incidence. 21. Which color reflects the least light? A) White. B) Black. C) Blue. D) Red. Show Answer Correct Answer: B) Black. 22. A form of energy that travels in straight lines A) Kinetic. B) Light. C) Sound. D) Atoms. Show Answer Correct Answer: B) Light. 23. Which of these objects clearly demonstrate light being reflected in a single new direction? A) Black paper. B) A still lake. C) A prism. D) A curved lens. Show Answer Correct Answer: B) A still lake. 24. Which of the following statements does not describe Light independent reaction? A) Aka Calvin cycle. B) Produce ATP and NADPH. C) Produce glucose. D) Occur in the stroma of the chloroplast. E) Use ATP and NADPH for the reaction. Show Answer Correct Answer: B) Produce ATP and NADPH. 25. Which of the following properties are used while using the periscope? A) Gravitational force. B) Reflection of light. C) Property of lights and beams. D) None of these. Show Answer Correct Answer: B) Reflection of light. 26. Sunlight, tanning beds, plant lights A) Microwaves. B) Ultraviolet (UV). C) Radio. D) X-Rays. E) Infrared. Show Answer Correct Answer: B) Ultraviolet (UV). 27. Chose the right image A) Light sorce to the mirror and then to our eyes. B) Our eyes and to the mirror. C) All the above. D) None of the above. Show Answer Correct Answer: A) Light sorce to the mirror and then to our eyes. 28. Which of the following can form enlarged, virtual images? A) Plane mirrors. B) Concave mirrors. C) Concave lens. D) Convex mirrors. Show Answer Correct Answer: B) Concave mirrors. 29. ..... is a polished or shinning reflecting surface. A) Mirror. B) Lens. C) All the above. D) None of the above. Show Answer Correct Answer: A) Mirror. 30. Materials that do not let any light pass through them A) Reflection. B) Translucent. C) Transparent. D) Opaque. Show Answer Correct Answer: D) Opaque. 31. Blue+green+red = (a) A) A. white. B) Baby pink. C) Black. D) None of the above. Show Answer Correct Answer: A) A. white. 32. Light carries energy in the form of ..... energy. A) Mechanical. B) Atomic. C) Radiant. D) Chemical. Show Answer Correct Answer: C) Radiant. 33. Complete the sentence to explain the different paths of red light and violet light. Red light travels at a ..... speed inside the glass block than violet light. A) Slower. B) Equal. C) Different. D) Greater. Show Answer Correct Answer: D) Greater. 34. Can be used to identify heat signatures of people lost in the wilderness A) Radio. B) X-Rays. C) Ultraviolet (UV). D) Infrared. E) Microwaves. Show Answer Correct Answer: D) Infrared. 35. A concave mirror is also known as a diverging mirror A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 36. Is Light a Particle or Wave A) Both. B) Particle. C) Waves. D) None. Show Answer Correct Answer: A) Both. 37. 5) A concave mirror produces a magnification of +4. The object is placed: A) A ) at the focus. B) B) Between focus and centre of curvature. C) (c) Between focus and pole. D) D) Beyond the centre of curvature. Show Answer Correct Answer: C) (c) Between focus and pole. 38. Light takes around ..... minutes to travel from the sun to the Earth. A) Eight. B) Five. C) Seven. D) Six. Show Answer Correct Answer: A) Eight. 39. What is the difference the way light interacts with the shirt and the way light interacts with the mirror? A) The shirt absorbs the light while mirror reflects light. B) The shirt reflects light while mirror absorbs light. C) The shirt absorbs light while mirror transmit light. D) The shirt transmit light while mirror scatters light. Show Answer Correct Answer: A) The shirt absorbs the light while mirror reflects light. 40. A combination of all the wavelengths with in the visible light portion of the electromagnetic spectrum will result in which of the following colors? A) Violet. B) Red. C) White. D) Blue. Show Answer Correct Answer: C) White. 41. Madhav is pushing the door closed. He cannot see through the door because it is- A) Opaque. B) Translucent. C) Transparent. D) None of the above. Show Answer Correct Answer: A) Opaque. 42. The two types of spherical mirrors are ..... A) Flat and plane. B) Concave and plane. C) Convex and concave. D) Plane and rectangular. Show Answer Correct Answer: C) Convex and concave. 43. The ray coming from a source is called? A) Normal ray. B) Incident ray. C) Principal ray. D) Reflected ray. Show Answer Correct Answer: B) Incident ray. 44. Shadow of an object is always A) Colourful. B) Transparent. C) White. D) Black. Show Answer Correct Answer: D) Black. 45. What is the Corona? (BONUS) A) The temperature of the sun. B) The outer most layer of the Sun's atmosphere. C) Another name for the Electromagnetic Spectrum. D) The measurement of the crests and troughs on a transverse wave. Show Answer Correct Answer: B) The outer most layer of the Sun's atmosphere. 46. Where would an object be placed to get an image at the centre of the curvature of a concave mirror? A) At focus. B) At infinity. C) At centre of the curvature. D) Between F and C. Show Answer Correct Answer: C) At centre of the curvature. 47. The mirror which forms the image whose magnification always positive is ..... A) Concave. B) Convex. C) Plane. D) Converging. Show Answer Correct Answer: B) Convex. 48. A ray of light travelling in air enters obliquely into water. The light rat will bend A) Towards the normal. B) Away from normal. C) Will not bend. D) None. Show Answer Correct Answer: A) Towards the normal. 49. This object is thick in the middle A) Convex. B) Prism. C) Mirror. D) Concave. Show Answer Correct Answer: A) Convex. 50. Which of the following characteristic of an image formed for a convex mirror? A) Inverted image. B) Real image. C) Virtual image. D) Enlarged size. Show Answer Correct Answer: C) Virtual image. 51. If light is bouncing back from a surface, those rays are called? A) Normal ray. B) Reflected ray. C) Incident ray. D) Principal ray. Show Answer Correct Answer: B) Reflected ray. 52. WHERE WOULD BE A SHADY PLACE TO STAND ON A SUNNY DAY? A) IN THE MIDDLE OF A FOOTBALL GROUND. B) IN THE SEA. C) UNDER A TREE. D) NONE OF THE ABOVE. Show Answer Correct Answer: C) UNDER A TREE. 53. Light is a form of ..... that can move through space. A) Colors. B) Rays. C) Mirrors. D) Energy. Show Answer Correct Answer: D) Energy. 54. For refraction to occur, there must be ..... A) 2 transulcent materials. B) Water. C) A shiny surface. D) 2 transparent materials. Show Answer Correct Answer: D) 2 transparent materials. 55. Leaves look green because ..... A) They eat their vegetables. B) They contain a molecule named chlorophyll. C) To blend into their environment. D) They are sick. Show Answer Correct Answer: B) They contain a molecule named chlorophyll. 56. Lunar eclipse occurs when ..... A) Pluto;earth;saturn come in a straight line. B) Moon;sun;earth come in a straight line. C) Sun;earth;moon come in a straight line. D) All of these. E) None of these. Show Answer Correct Answer: C) Sun;earth;moon come in a straight line. 57. Which one shows lateral inversion? A) Convex mirror. B) Plane mirror. C) Concave mirror. D) All of these. Show Answer Correct Answer: B) Plane mirror. 58. Fireflies and Glow worms are the example of A) Natural Source of Light. B) Artificial source of Light. C) All the above. D) None of the above. Show Answer Correct Answer: A) Natural Source of Light. 59. Mike wants to put a window over his bathtub. Which type of material should he pick to allow light and privacy? A) Tranparent. B) Relective. C) Opaque. D) Translucent. Show Answer Correct Answer: D) Translucent. 60. The refractive index of four substance P, Q, R and S are 1.30, 1.33, 1.44 and 1.31 respectively. The speed of light is the maximuminthesubstance: A) R. B) Q. C) S. D) P. Show Answer Correct Answer: D) P. ← PreviousNext →Related QuizzesScience QuizzesClass 7 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books