This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Light > Class 7 Science Chapter 11 Light – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 19 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... image is produced from a mirror and cannot be obtained on screen. A) Virtual. B) Real. C) Bright. D) Inverted. Show Answer Correct Answer: A) Virtual. 2. All of the following are sources of light except ..... A) The sun. B) The moon. C) Fire. D) A light bulb. Show Answer Correct Answer: B) The moon. 3. What is being blocked when a shadow is formed? A) Eye. B) Light Source. C) Object. D) Light Path. Show Answer Correct Answer: D) Light Path. 4. Which kind of mirror forms an enlarged image? A) Concave. B) Convex. C) Plane. D) All of the above. Show Answer Correct Answer: A) Concave. 5. 6CO2 + 6H2O textregistered C6H12O6 + 6O2 This chemical equation describes: A) Photosynthesis. B) Electron Transport Chain. C) Glycolysis. D) Photolysis. E) Cellular respiration. Show Answer Correct Answer: A) Photosynthesis. 6. Image that can be obtained on the screen A) Real. B) Virtual. C) All the above. D) None of the above. Show Answer Correct Answer: A) Real. 7. Red from the color spectrum has the longest wavelength. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 8. Which of the following light color is absorbed by plants? A) Red. B) Green. C) Light green. D) Yellow. Show Answer Correct Answer: A) Red. 9. ..... eclipse takes place when Earth comes in between Sun and Moon A) Solar. B) Lunar. C) All the above. D) None of the above. Show Answer Correct Answer: B) Lunar. 10. Light cannot go around ..... ? A) Corners. B) Bends. C) A wall. D) All of the above. Show Answer Correct Answer: D) All of the above. 11. In torches, search lights and headlights of vehicles the bulb is placed A) Between the pole and the focus of the reflector. B) Very near to the focus of the reflector. C) Between the focus and centre of curvature of the reflector. D) At the centre of curvature of the reflector. Show Answer Correct Answer: B) Very near to the focus of the reflector. 12. If an object is placed at a distance of 10 cm in front of a plane mirror how far would it be from its image. A) 30cm. B) 40cm. C) 10cm. D) 20cm. Show Answer Correct Answer: D) 20cm. 13. When an obj is placed at focus then which type of image is formed? A) Real. B) Virtual. C) Inverted. D) Both (1)and (3). Show Answer Correct Answer: D) Both (1)and (3). 14. There is a lot of sunlight. So, you pull the curtains and the room becomes slightly dark. This happens because the curtains are ..... A) Transparent. B) Opaque. C) Translucent. D) None of the given options. Show Answer Correct Answer: C) Translucent. 15. Calculate the power of a lens whose focal length is +40 cm. Also Identify the nature of the lens. A) P = +2.5 DConvex Lens. B) P = +0.25 DConcave lens. C) P = +2.5 DConvex lens. D) P = +0.25 DConcave lens. Show Answer Correct Answer: C) P = +2.5 DConvex lens. 16. A person 1.7 m in front of a plane mirror seems to be ..... m from his image. A) 3.4 m. B) 17 m. C) 1.7 m. D) 34 m. Show Answer Correct Answer: A) 3.4 m. 17. Produces glucose. Light independent or light dependent stage? A) Light independent stage. B) Light dependent stage. C) All the above. D) None of the above. Show Answer Correct Answer: A) Light independent stage. 18. Which lens is known as diverging lenses A) Concave lens. B) Convex lens. C) All the above. D) None of the above. Show Answer Correct Answer: A) Concave lens. 19. Which material can light travel through, but scatters in different directions? A) Refraction. B) Translucent. C) Opaque. D) Transparent. Show Answer Correct Answer: B) Translucent. 20. If you are in a dark room, which source of light will appear the brightest to you? A) A candle on the table in front of you. B) Car lights outside. C) The lights next door. D) A flashlight shining down the hallway. Show Answer Correct Answer: A) A candle on the table in front of you. 21. Ground Glass is the example of A) Transparent Objects. B) Translucent Objects. C) Opaque Objects. D) None of the above. Show Answer Correct Answer: B) Translucent Objects. 22. Which mirror forms always a virtual image and same size as an object. A) Plane. B) Concave. C) Converging. D) Convex. Show Answer Correct Answer: A) Plane. 23. The image of a candle flame placed at a distance of 30cm from a mirror is formed on a screen placed in front of the mirror at a distance of 60cm from its pole. What is the nature of the mirror? Find its focal length. A) F =-20 cmConvex MirrorReal & Inverted Image. B) F = + 20 cmConvex MirrorVirtual & Erect Image. C) F = + 20 cmConcave MirrorVirtual & Erect Image. D) F =-20 cmConcave MirrorReal & Inverted Image. Show Answer Correct Answer: D) F =-20 cmConcave MirrorReal & Inverted Image. 24. The change of right side to left side and left side to right side in the mirror is called ..... A) Lateral Opposition. B) Words Inversion. C) Lateral Inversion. D) None of these. Show Answer Correct Answer: C) Lateral Inversion. 25. The mirror in which outer surface (bulged surface) is coated is called A) Convex lens. B) Plane mirror. C) Concave mirror. D) Convex mirror. Show Answer Correct Answer: C) Concave mirror. 26. To make a plane mirror, a thin piece of glass is taken and coated with a layer of ..... on it's back A) Silver. B) Gold. C) Bronze. D) Metal. Show Answer Correct Answer: A) Silver. 27. What is a prism used for? A) To enhance the brightness of colors. B) To measure the temperature of liquids. C) To create a solid shape for storage. D) To refract light and separate it into colors. Show Answer Correct Answer: D) To refract light and separate it into colors. 28. Which is more powerful A) Gamma rays. B) Infra red. C) Visible light. D) Radio waves. Show Answer Correct Answer: A) Gamma rays. 29. Transfer of light energy to matter. A) Scattering. B) Absorption. C) Reflection. D) Refraction. Show Answer Correct Answer: B) Absorption. 30. Which of the following angles between two mounted plane mirrors will give more images? A) 180$^\circ$. B) 60$^\circ$. C) 30$^\circ$. D) 90$^\circ$. Show Answer Correct Answer: C) 30$^\circ$. 31. *A convex lens converges ( ..... inward) the light generally falling on it that's why it is called as a converging lens A) Bends. B) Bends Out. C) Converges. D) Digerges. Show Answer Correct Answer: A) Bends. 32. Which travels faster? A) Sound. B) Light. C) Water. D) None of the above. Show Answer Correct Answer: B) Light. 33. Mirrors that curve inwards are called A) Convex. B) Concave. C) All the above. D) None of the above. Show Answer Correct Answer: B) Concave. 34. What makes things visible? A) Light. B) Dim light. C) Torch. D) None of the above. Show Answer Correct Answer: A) Light. 35. Object does not appear smaller when viewed in A) Plane mirror. B) Concave mirror. C) Convex mirror. D) None of the above. Show Answer Correct Answer: A) Plane mirror. 36. Why does an apple appear red? A) All colors are absorbed & none are reflected. B) All colors are absorbed except for blue, which is reflected. C) All colors are reflected and none are absorbed. D) All colors are absorbed except for red, which is reflected. Show Answer Correct Answer: D) All colors are absorbed except for red, which is reflected. 37. Sunlight called white light consits of ..... colours A) 7. B) 5. C) 0. D) 1. Show Answer Correct Answer: A) 7. 38. Can a fire give off light energy? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 39. The shadow of Earth falls on Sun due to which Moon appears dark. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 40. During a thunderstorm, Sanjay saw lightning and then heard thunder 5 s later. Why does he see the lightning before he hears the thunder? A) He would have seen the lightning and heard the thunder at the same time. B) Sound travels faster than light. C) Light travels faster than sound. D) There is no reason. Show Answer Correct Answer: C) Light travels faster than sound. 41. We are provided with a convex mirror, concave mirror, convex lens and a concave lens. We can get an inverted from? A) Both concave lens and convex lens. B) Both concave mirror as well as convex mirror. C) Both concave mirror as well as convex lens. D) Both convex mirror as well as the concave lens. Show Answer Correct Answer: C) Both concave mirror as well as convex lens. 42. A divergent lens will produceA divergent lens will produce A) Always real image. B) Always virtual image. C) Both real and virtual image. D) None of these. Show Answer Correct Answer: B) Always virtual image. 43. The amount of light entering the eye is regulated by A) Iris and pupil. B) Cornea and retina. C) Iris and sclera. D) None of the above. Show Answer Correct Answer: A) Iris and pupil. 44. Which material is NOT translucent? A) Brick. B) Tissue paper. C) Thin sheet of plastic. D) None of the above. Show Answer Correct Answer: A) Brick. 45. Can be used to send communications, videos, and music short range (local areas) or long range (to space) A) X-Rays. B) Ultraviolet (UV). C) Infrared. D) Microwaves. E) Radio. Show Answer Correct Answer: E) Radio. 46. Solar eclipse occurs when ..... A) Earth;stars;moon comes in a straight line. B) Sun;moon;earth comes in a straight line. C) Neptune;earth;sun comes in a straight line. D) None of the above. Show Answer Correct Answer: B) Sun;moon;earth comes in a straight line. 47. The height of object and image distance are + 6 cm and+ 18 cm respectively, then it's magnification is A) -3 cm. B) -0.3 cm. C) + 0.3 cm. D) + 3 cm. Show Answer Correct Answer: D) + 3 cm. 48. THE ECLIPSES CANNOT BE SEEN ON EVERY NEW MOON DAY AND FULL MOON DAY BECAUSE- A) EARTH IS REVOLVING. B) MOON IS REVOLVING. C) EARTH ALSO ROTATES. D) EARTH, MOON AND SUN SHOULD COME IN STRAIGHT LINE. Show Answer Correct Answer: D) EARTH, MOON AND SUN SHOULD COME IN STRAIGHT LINE. 49. The correct order of colors in a spectrum. A) YellowOrangeBlue RedVioletGreenIndigo. B) VioletIndigoBlueGreen OrangeYellowRed. C) VioletBlueIndigoGreen YellowOrangeRed. D) VioletIndigoBlueGreen YellowOrangeRed. Show Answer Correct Answer: D) VioletIndigoBlueGreen YellowOrangeRed. 50. The colour white ..... A) Absorbs light. B) Is the only colour in the spectrum. C) Reflects light. D) All of the above. Show Answer Correct Answer: C) Reflects light. 51. Which statement is not something that makes an aircraft heavier than air aircraft? A) Supported by the flow of the air over the lifting surfaces (wings). B) Powered by a propeller. C) Powered by a jet engine. D) Heat the inside to a high temperature. Show Answer Correct Answer: D) Heat the inside to a high temperature. 52. The phenomenon due to which a parallel beam of light on striking a smooth and highly polished surface is reflected back as a parallel beam of light is called A) Irregular reflection. B) Regular reflection. C) Diffused reflection. D) Refraction. Show Answer Correct Answer: B) Regular reflection. 53. Why can't we see anything in a dark room? A) Everything is black in colour. B) Our eyes do not work in darkness. C) No light reaches our eyes. D) All the light gets scattered. Show Answer Correct Answer: C) No light reaches our eyes. 54. An image formed on a concave mirror with the object between "Centre of Curvature" and "Focus" is formed ..... than the object. A) Diminished. B) Smaller. C) Bigger. D) Highly Magnified. Show Answer Correct Answer: C) Bigger. 55. A convex mirror used for rear view on an automobile has a radius of curvature of 3 m. If a bus is located at 5 m from this mirror. Find out the position, nature and size of the image. A) V = + 1.15 mm = + 0.23Virtual & Erect. B) V =-1.15 mm =-0.23Virtual & Erect. C) V =-1.5 mm = + 0.23Real & Inverted. D) V = + 1.5 mm = + 2.3Real & Inverted. Show Answer Correct Answer: A) V = + 1.15 mm = + 0.23Virtual & Erect. 56. The places that fall under the umbral region, during a solar eclipse experiences a A) Total solar eclipse. B) Partial solar eclipse. C) All the above. D) None of the above. Show Answer Correct Answer: A) Total solar eclipse. 57. Which pairs of colors of pigment combine to make black? A) Green and magenta. B) Red and cyan. C) Yellow and blue. D) All of the above. Show Answer Correct Answer: D) All of the above. 58. The process of separating the colors of white light using a prism. A) Reflection. B) Interference. C) Dispersion. D) Diffraction. Show Answer Correct Answer: C) Dispersion. 59. Which is not an example of artificial light? A) T.V. B) Stars. C) Flashlight. D) Light bulbs. Show Answer Correct Answer: B) Stars. 60. Which of these is a source of light? A) A firefly. B) The whiteboard. C) Trees. D) A drinking glass. Show Answer Correct Answer: A) A firefly. ← 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