This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Light > Class 7 Science Chapter 11 Light – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 13 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The iris is the coloured part of the eye A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. Heather puts a straw into a glass of water. She notices that the straw appears to be broken when she looks through the glass and the water from the side. Which term bestexplains why the straw looks like it is broken? A) Absorption. B) Scattering. C) Refraction. D) Transmission. Show Answer Correct Answer: C) Refraction. 3. ....ECLIPSE OCCURS WHEN THE MOON COMES IN BETWEEN THE EARTH AND THE SUN A) LUNAR. B) SUN. C) EARTH. D) SOLAR. Show Answer Correct Answer: D) SOLAR. 4. The plane defined by the incident ray and the normal is known as ..... A) Plane of Incidence. B) Plane of Reflection. C) Plane of Normal. D) None of these. Show Answer Correct Answer: A) Plane of Incidence. 5. Latif wakes up one morning and sees that it is foggy outside. Which term best describes the fog he sees? A) Transparent. B) Opaque. C) Translucent. D) Reflective. Show Answer Correct Answer: C) Translucent. 6. Which term describes when light bounces off of a smooth surface? A) Refraction. B) Transmission. C) Reflection. D) Absorption. Show Answer Correct Answer: C) Reflection. 7. Spherical mirrors do not obey laws of reflection. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. Which of the following is the best example of an object absorbing light? A) A curved mirror in the sun. B) A clean window in the sun. C) A long shadow in the sun. D) A black sweater in the sun. Show Answer Correct Answer: D) A black sweater in the sun. 9. The mirror having reflection surface curved outward A) Convex mirror. B) Plane mirror. C) Cylindrical Mirror. D) Concave mirror. Show Answer Correct Answer: A) Convex mirror. 10. If 'R' is radius of curvature and 'f' is focal length of a spherical mirror then the correct relation between the two is A) F = R/2. B) R = f. C) R = f/2. D) F = 2R. Show Answer Correct Answer: A) F = R/2. 11. Objects allow all light to pass through and are things like glass or clear plastic. A) Transparent. B) Prism. C) Translucent. D) Opaque. Show Answer Correct Answer: A) Transparent. 12. In which order does scientists suggest new ideas and explanations? A) Test, predict, conclude. B) Predict, test, collect evidence and conclude. C) Test, conclude and collect evidence. D) None of the above. Show Answer Correct Answer: B) Predict, test, collect evidence and conclude. 13. Characteristics of shadow are not ..... A) Depends on the colour. B) The angle the light is shone. C) Depends on the Brightness of a light. D) The direction of the light. Show Answer Correct Answer: A) Depends on the colour. 14. Which is not a luminous Object A) Bulb. B) Moon. C) Torch. D) All of these. Show Answer Correct Answer: B) Moon. 15. Light energy that can be seen and can be broken into the colors of light in the rainbow. A) Vibrate. B) Visible spectrum. C) Wavelength. D) Ray. Show Answer Correct Answer: B) Visible spectrum. 16. Objects that give out light are A) Luminous. B) Non-luminous. C) Opaque. D) None of the above. Show Answer Correct Answer: A) Luminous. 17. A mirror ..... an image of an object. A) Reflects. B) Signals. C) All the above. D) None of the above. Show Answer Correct Answer: A) Reflects. 18. The ..... is the hole in the centre of the iris. Light enters the eye through this hole. A) Retina. B) Pupil. C) Lens. D) Optic nerve. Show Answer Correct Answer: B) Pupil. 19. Which of the following is a man made source of light? A) A torch. B) A book. C) A car. D) A poster. Show Answer Correct Answer: A) A torch. 20. How do we see an object? A) Light reflects off the object and into our eyes. B) Light travels from our eyes and reflects off the object. C) Light reflects off our eyes and enters the object. D) The object produces its own light. Show Answer Correct Answer: A) Light reflects off the object and into our eyes. 21. What is the point where the reflected rays of light meet? A) Centre of curvature. B) Aperture. C) None of the above. D) None of the above. Show Answer Correct Answer: C) None of the above. 22. Coloured part of human eye A) Cornea. B) Retina. C) Iris. D) Pupil. Show Answer Correct Answer: D) Pupil. 23. The colour of light which is deviated the least by prism in the spectrum of white light is? A) Violet. B) Red. C) Yellow. D) Green. Show Answer Correct Answer: A) Violet. 24. During a thunderstorm, Sanjay saw lightning and then heard thunder 5s later.Why did he see the lightning before he heard the thunder A) Sound travel faster than light. B) Light travel faster than sound. C) He would have seen the thunder and lightning at the same time. D) There is no reason. Show Answer Correct Answer: B) Light travel faster than sound. 25. Adrian is observing a piece of white paper. His eye perceives the paper to be white because his eye is receiving what kind of light? A) Light in all the colors of the visible spectrum. B) Light mostly at the ultraviolet end of the spectrum. C) Light mostly at the infrared end of the spectrum. D) Light the paper produces when heated by the Sun. Show Answer Correct Answer: A) Light in all the colors of the visible spectrum. 26. A band of seven colours formed when white light passes through a transparent medium is called A) Reflection of light. B) Spectrum of light. C) Refraction of light. D) Dispersion of light. Show Answer Correct Answer: B) Spectrum of light. 27. Which of the following is not produced in the light reaction? A) Oxygen. B) ATP. C) Sugar. D) None of the above. Show Answer Correct Answer: C) Sugar. 28. A blue dish appears blue because it A) Absorbs white light. B) Reflects blue light. C) Absorbs blue light. D) Reflects white light. Show Answer Correct Answer: B) Reflects blue light. 29. A material that allows most of the light that strikes it to pass through, but through which objects appear blurry A) Transparent. B) Translucent. C) Opaque. D) None of the above. Show Answer Correct Answer: B) Translucent. 30. A smooth shining surface, which rebounds the light in the same or in different directions, is called ..... A) A lens. B) Point of incidence. C) Reflection of light. D) A mirror. Show Answer Correct Answer: D) A mirror. 31. What happens to light as it passes through a lens? A) It is divided. B) It is absorbed. C) It is reflected. D) It is refracted. Show Answer Correct Answer: D) It is refracted. 32. In which of the following condition concave mirror forms a virtual image? A) When an object is placed at C. B) When an object is placed at F. C) When an object is placed at 2C. D) When an object is placed in between F and P. Show Answer Correct Answer: D) When an object is placed in between F and P. 33. Candle and oil lamps are ..... sources of light. A) Natural. B) Artificial. C) Opaque. D) Non-luminous. Show Answer Correct Answer: B) Artificial. 34. All of the colors in white light are visible when white light is ..... A) Refracted. B) Transmitted. C) Absorbed. D) Reflected. Show Answer Correct Answer: A) Refracted. 35. Formation of rainbow is due to A) Refraction. B) Reflection. C) Reflection, refraction, dispersion. D) Dispersion. Show Answer Correct Answer: C) Reflection, refraction, dispersion. 36. Where does light dependent specifically occur? A) Mitochondria. B) Stroma of the chloroplast. C) Nuclear membrane. D) Thylakoid membrane of the grana. Show Answer Correct Answer: D) Thylakoid membrane of the grana. 37. What does the law of reflection say? A) The angle of incidence equals the angle of reflection. B) All waves incident on a mirror are reflected. C) Waves incident on a mirror are partially reflected. D) The angle a ray is reflected from a mirror is random. Show Answer Correct Answer: A) The angle of incidence equals the angle of reflection. 38. Image formed in a concave mirror between F and P is A) Magnified and real. B) Diminished and virtual. C) Same size as the object and virtual. D) Magnified and virtual. Show Answer Correct Answer: D) Magnified and virtual. 39. Reflect means ..... A) Light bounces back. B) Light goes through and bends. C) Light goes straight through. D) Light gets taken in. Show Answer Correct Answer: A) Light bounces back. 40. Sun is an example of A) Natural source of light. B) Man made source of light. C) All the above. D) None of the above. Show Answer Correct Answer: A) Natural source of light. 41. Assertion (A):Power of a concave lens is negative. Reason (R):A concave lens has a virtual focus A) A) Both (A) and (R) are true and (R) is the correct explanationofthe(A). B) (b) Both(A)and(R)aretrue, but(R)isnotthecorrect explanationofthe(A). C) (c) (A)istrue, but(R)isfalse. D) (d) (A)isfalse, but(R)istrue. Show Answer Correct Answer: A) A) Both (A) and (R) are true and (R) is the correct explanationofthe(A). 42. Which color of light bends the most? A) Indigo. B) Violet. C) Red. D) Yellow. Show Answer Correct Answer: B) Violet. 43. The bouncing of light by any smooth surface, like a mirror, is called A) Refraction. B) Galvanization. C) Reflection. D) None of these. Show Answer Correct Answer: C) Reflection. 44. If we observe closely, we will find that the Moon changes in its appearance everyday, this is due to A) The Sun light that falls on the Moon. B) The Sun's Shadow that falls on the Moon. C) The Earth's shadow that falls on the Moon. D) The Moon's own light. Show Answer Correct Answer: A) The Sun light that falls on the Moon. 45. Theangle of reflection is equal to the angle of incidence A) Always. B) Never. C) Sometimes. D) Under special circumstances. Show Answer Correct Answer: A) Always. 46. If you stand at a distance of 2 feet in front of the plane mirror, what will be the distance between your image and you? A) 2 feet. B) 1 foot. C) 4 feet. D) 3 feet. Show Answer Correct Answer: C) 4 feet. 47. What is the main purpose of the light dependent reactions? A) To provide the energy for the calvin cycle. B) To capture energy and make sugar. C) To reflect green light. D) To make sugars. Show Answer Correct Answer: A) To provide the energy for the calvin cycle. 48. Which of the following relation is true for spherical mirror? A) R=2f. B) F=2r. C) F=r. D) 2f=r. Show Answer Correct Answer: A) R=2f. 49. When you enter a dark room, your pupil will? A) Turns white. B) No change. C) Decrease in size. D) Increase in size. Show Answer Correct Answer: D) Increase in size. 50. The geometrical centre of a spherical mirror is called the A) Focal length. B) Pole of the mirror. C) Principal focus. D) Centre of curvature. Show Answer Correct Answer: B) Pole of the mirror. 51. Light travels along a ..... A) Straight. B) Curve. C) Up down. D) None of these. Show Answer Correct Answer: A) Straight. 52. Why is a spectrum of seven colours formed when sunlight passes through a prism? A) The prism adds colour to the white sunlight. B) The different colours of light is reflected at different angles in a glass prism. C) White light is a mixture of seven colours. D) Light travels at high speed. Show Answer Correct Answer: B) The different colours of light is reflected at different angles in a glass prism. 53. What is the minimum distance between the image and its object in a concave mirror? A) Zero. B) 1m. C) There is no definite distance. D) All of these. Show Answer Correct Answer: A) Zero. 54. Name the part of the eye which gives colour to the eyes. A) Pupil. B) Iris. C) Retina. D) Cornea. Show Answer Correct Answer: B) Iris. 55. A ..... telescope uses a mirror to focus light onto a small area. A) Refracting. B) Radio. C) Reflecting. D) Spectrum. Show Answer Correct Answer: C) Reflecting. 56. What is light that is seen by humans called? A) Photographs. B) Infrared light. C) Visible light. D) X-rays. Show Answer Correct Answer: C) Visible light. 57. Light can travel through air, water and space. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 58. Tom is using a mirror and a flashlight to show which property of light? A) Absorption. B) Translucence. C) Refraction. D) Reflection. Show Answer Correct Answer: D) Reflection. 59. Blocks all light and forms shadow A) Reflection. B) Opaque objects. C) Transparent objects. D) Translucent objects. Show Answer Correct Answer: B) Opaque objects. 60. Lenses are ..... A) Found in nature. B) Curved pieces of glass. C) Are opaque. D) Flat pieces of glass. Show Answer Correct Answer: B) Curved pieces of glass. ← 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