This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Light > Class 7 Science Chapter 11 Light – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 11 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Light is a type of energy that travels as an ..... A) Electric Current. B) Longitudinal Wave. C) Magnetic Wave. D) Electromagnetic Wave. Show Answer Correct Answer: D) Electromagnetic Wave. 2. The direction in which a transverse wave travels is ..... A) From the disturbance downward. B) At right angles to the disturbance. C) The same direction as the disturbance. D) Toward the disturbance. Show Answer Correct Answer: B) At right angles to the disturbance. 3. ..... is the form of energy that helps to see objects. A) Electricity. B) Light. C) Heat. D) Wind. Show Answer Correct Answer: B) Light. 4. ..... is the branch of physics which deals with the phenomenon relating light and vision. A) Optics. B) Optical. C) Bestow. D) Optcalius. Show Answer Correct Answer: A) Optics. 5. MOOM IS LUMINOUS? ..... A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 6. What is the meaning of thrilled? A) Sleepy. B) Dull. C) Excitement. D) Angry. Show Answer Correct Answer: C) Excitement. 7. Meaning of transparent A) Material that lets light through but scatters it. B) To pass through a substance. C) A ray of bouncing off a mirror. D) To soak up. Show Answer Correct Answer: B) To pass through a substance. 8. If you are standing 2m away from a plane mirror the distance between you and your image are A) 8m. B) World Cup. C) Or. D) Pcs. Show Answer Correct Answer: B) World Cup. 9. What is the only form of energy we can see? A) Prism. B) Light. C) Mirror. D) None of the above. Show Answer Correct Answer: B) Light. 10. Which among the following visible spectrum will bend the most? A) Red. B) Violet. C) Orange. D) Blue. Show Answer Correct Answer: B) Violet. 11. In order to see a picture it must A) Produce light. B) Reflect light. C) Absorb light. D) None of the above. Show Answer Correct Answer: B) Reflect light. 12. The least distance at which a normal eye can see an object clearly is called the ..... A) Near point of eye. B) Far point of eye. C) Accommodation of eye. D) Persistence of vision. Show Answer Correct Answer: A) Near point of eye. 13. Rays of light bend on entering a pin hole camera A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 14. An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the nature, size and position of the image formed. A) V =-6 cmm =-0.6Real & Inverted. B) V = + 6 cmm = + 0.6Virtual and Erect. C) V =-6 cmm =-0.6Virtual and Erect. D) V = + 6 cmm = + 0.6Real & Inverted. Show Answer Correct Answer: B) V = + 6 cmm = + 0.6Virtual and Erect. 15. What happens when light hits an opaque object A) It becomes a natural source of light. B) It becomes a luminous object. C) It bounces back. D) Dispersion of light takes place. Show Answer Correct Answer: C) It bounces back. 16. Light obtained from sun is A) White. B) Blue. C) Red. D) Black. Show Answer Correct Answer: A) White. 17. What is the source of natural light? A) Fireflies. B) The sun. C) Artificial lights. D) The moon. Show Answer Correct Answer: B) The sun. 18. Number of images formed when two mirrors are placed 45 degree to each other A) 5. B) Infinite. C) 3. D) 7. Show Answer Correct Answer: D) 7. 19. The part of shadow where no light reaches is known as A) PENUMBRA. B) NOT SURE. C) UMBRA. D) None of the above. Show Answer Correct Answer: C) UMBRA. 20. Which of these types of light have the lowest energy? A) Blue. B) Red. C) Violet. D) Yellow. Show Answer Correct Answer: B) Red. 21. Which is NOT a way a person would use the word reflect when describing light ENERGY? A) A cell phone can reflect our image back to us if the screen is blank. B) The light will reflect in different directions. C) Tamatoa's shiny shell reflects more than dull objects. D) Reflect on your decision to make good choices. Show Answer Correct Answer: D) Reflect on your decision to make good choices. 22. What is NOT one of the 3 main types of mediums? A) Plastic. B) Solid. C) Liquid. D) Gas. Show Answer Correct Answer: A) Plastic. 23. An important property of light is that it travels in a ..... line A) Straight. B) Curved. C) All the above. D) None of the above. Show Answer Correct Answer: A) Straight. 24. An object, which we can see partially, but not very clearly, is A) A sheet of plane glass. B) A rubber ball. C) A sheet of tracing paper. D) Air. Show Answer Correct Answer: C) A sheet of tracing paper. 25. How does the light travels? A) In parallel. B) In a straight line. C) On its own orbit. D) On its own path. Show Answer Correct Answer: B) In a straight line. 26. Which Of the following is opeque?? A) Glass. B) Water. C) Prism. D) Mirror. Show Answer Correct Answer: D) Mirror. 27. All the colors that we observed in an object are ..... colors. A) Reflected. B) Transmitted. C) Absorbed. D) Scattered. Show Answer Correct Answer: A) Reflected. 28. Which sensory cells are are sensitive to bright light and can detect colour? A) Rods. B) Cones. C) All the above. D) None of the above. Show Answer Correct Answer: B) Cones. 29. Used to "see" inside the body, for instance to tell if a bone is broken A) Radio. B) Microwaves. C) X-Rays. D) Infrared. E) Ultraviolet (UV). Show Answer Correct Answer: C) X-Rays. 30. A transparent object lets ..... light through than a translucent object. A) More. B) Less. C) All the above. D) None of the above. Show Answer Correct Answer: A) More. 31. Absolute refractive index of any medium is always ..... A) Less than 1. B) 0. C) Greater than 1. D) 1. Show Answer Correct Answer: C) Greater than 1. 32. The number of images formed when of an object placed between two plane mirrors inclined at right angles to each other is A) Five. B) Two. C) Three. D) One. Show Answer Correct Answer: C) Three. 33. Light refracts when traveling from air into glass because light A) Travels at the same speed in air and in glass. B) Frequency is greater in air than in glass. C) Frequency is greater in glass than in air. D) Travels slower in glass than in air. Show Answer Correct Answer: D) Travels slower in glass than in air. 34. A perfect black body will A) Reflect all incident light and not absorb or transmit any of it. B) Absorb some incident light and reflect or transmit the rest. C) Absorb all incident light and not reflect or transmit any of it. D) Transmit all incident light and not absorb or reflect any of it. Show Answer Correct Answer: C) Absorb all incident light and not reflect or transmit any of it. 35. Can we see through all things? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 36. Luminous means ..... A) Gives out its own light. B) Reflects light from other things. C) All the above. D) None of the above. Show Answer Correct Answer: A) Gives out its own light. 37. A stick in water appears broken due to ..... A) Total internal reflection. B) Dispersion of light. C) Refraction of light. D) Reflection of light. Show Answer Correct Answer: C) Refraction of light. 38. Sometimes waves, (sound waves) can bend around a barrier like a wall. This type of bending is called ..... A) Reflection. B) Rebound. C) Absorption. D) Differaction. Show Answer Correct Answer: D) Differaction. 39. White light is made up of: A) Red, yellow, and blue. B) No colors. C) All colors. D) Red, green, and blue. Show Answer Correct Answer: C) All colors. 40. 'Light always travels in a straight line'What is the name of this property? A) Rectilinear propagation of light. B) Conservation of light energy. C) Straight propagation of light. D) None of the above. Show Answer Correct Answer: A) Rectilinear propagation of light. 41. A person 1m in front of a plane mirror seems to be ..... m away from his image. A) Or. B) World Cup. C) Paternal uncle. D) 1m. Show Answer Correct Answer: A) Or. 42. Waves with more energy are more damaging to humans. What are the 3 wave properties that give a wave more energy? A) Lower amplitude, lower frequency, longer wavelength. B) Faster frequency, shorter wavelength, smaller amlitude. C) The qualities of waves are random. It doesn't matter. D) Faster frequency, shorter wavelength, bigger amplitude. Show Answer Correct Answer: D) Faster frequency, shorter wavelength, bigger amplitude. 43. Why is it better to wear a white shirt than a black shirt in the summer? A) White shirts reflect all colors of visible light. B) Black shirts reflect all colors of visible light. C) Black material weighs more. D) White material weighs less. Show Answer Correct Answer: A) White shirts reflect all colors of visible light. 44. A shadow is a dark patch formed because of obstruction of light be an object. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 45. Putting a pencil in water and observing how it looks broken demonstrates the bending of light. The light traveling through the water is slowed down causing the pencil to look disconnected A) Reflection. B) Transparent. C) Refraction. D) Opaque. Show Answer Correct Answer: C) Refraction. 46. ..... refers to collection of rays A) Beam. B) Photon. C) Image. D) Shadow. Show Answer Correct Answer: A) Beam. 47. Which colour has more wavelength and can travel long distance A) Blue. B) Violet. C) Indigo. D) Red. Show Answer Correct Answer: D) Red. 48. Latif wakes up one morning and sees that it is foggy outside.Whcih term best describe the fog he sees A) Reflective. B) Opaque. C) Translucent. D) Transparent. Show Answer Correct Answer: C) Translucent. 49. The concave mirror has an inverted area A) Inward. B) Outward. C) Both inward and outward. D) None. Show Answer Correct Answer: A) Inward. 50. On which principle does the pinhole camera work on? A) Calvinear propagation of light. B) Rectilinear propagation of light. C) All the above. D) None of the above. Show Answer Correct Answer: B) Rectilinear propagation of light. 51. A mirror changes the direction of light that falls on it. this change of direction by a mirror is called ..... A) Reflection. B) Reflection of sound. C) Reflection of light. D) Reflectaion of light. Show Answer Correct Answer: C) Reflection of light. 52. Who discovered dispersion of light? A) Archimedes. B) Galileo Galilei. C) Nikola Tesla. D) Isaac Newton. Show Answer Correct Answer: D) Isaac Newton. 53. What is the nature of the image formed when the object is placed at the centre of curvature? A) Real, inverted and highly diminished. B) Real, inverted and diminished. C) Real, inverted and same size. D) Real, inverted and highly enlarged. Show Answer Correct Answer: C) Real, inverted and same size. 54. We are able to most of the things around us because of A) Regular Reflection. B) Irregular Reflection. C) All the above. D) None of the above. Show Answer Correct Answer: B) Irregular Reflection. 55. The mirror in which right of an object appears left of image and left of an object appears right is called A) Convex. B) Plane. C) Concave. D) Lateral. Show Answer Correct Answer: D) Lateral. 56. What is the function of optic nerve? A) It carries optical messages in form of electric signals to the brain. B) It lends colour to the eye. C) It regulate the amount of light entering the eye. D) It helds the eye lens at proper place. Show Answer Correct Answer: A) It carries optical messages in form of electric signals to the brain. 57. Energy that can be seen by the human eye is called ..... A) Eyesight. B) Wavelength. C) Visible light. D) Frequency. Show Answer Correct Answer: C) Visible light. 58. Where we see light house? A) Near seashore. B) In desert. C) Near hospital. D) None of the above. Show Answer Correct Answer: A) Near seashore. 59. During afternoon, shadow formed is very A) Big. B) Small. C) Straight. D) Curve. Show Answer Correct Answer: B) Small. 60. If we are not able to see clearly through the objects then that object is known as A) Translucent object. B) Opaque objects. C) Transparent objects. D) All of the above. Show Answer Correct Answer: A) Translucent object. ← 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