This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Light > Class 7 Science Chapter 11 Light – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Name of the equipment used to separate white light A) Lens. B) Mirror. C) Filter. D) Prism. Show Answer Correct Answer: D) Prism. 2. An object is kept at a distance of 4m in front of a spherical mirror, which forms its erect image at a distance of 1m from the mirror. What is the magnification? Is the mirror concave or convex? A) M = +1/4Convex Mirror. B) M = +4Concave Mirror. C) M =-4Convex mirror. D) M =-1/4Convex Mirror. Show Answer Correct Answer: A) M = +1/4Convex Mirror. 3. Which statement is true for the reflection of light? A) The angle of incidence and reflection are equal. B) The reflected light is less bright than the incident light. C) The sum of angle of incidence and reflection is always greater than 900. D) The beams of incident light after reflection diverge at unequal angles. Show Answer Correct Answer: A) The angle of incidence and reflection are equal. 4. White light is a mixture of ..... A) Eight colours. B) Nine colours. C) Six colours. D) Seven colours. Show Answer Correct Answer: D) Seven colours. 5. In which case a shadow is not formed? A) Light falls on opaque object. B) Light falls on translucent object. C) Screen is far away. D) None. Show Answer Correct Answer: C) Screen is far away. 6. ..... -the angle between the normal and the incident ray. A) Angle of direction. B) Angle of reflection. C) Angle of coincidence. D) Angle of incidence. Show Answer Correct Answer: D) Angle of incidence. 7. What is the best description of an opaque material? A) No light passes through the material. B) Some light passes through the material. C) All light passes through the material. D) None of the above. Show Answer Correct Answer: A) No light passes through the material. 8. The third color of white light if they are arranged from longest to shortest wavelength. A) Blue. B) Indigo. C) Yellow. D) Green. Show Answer Correct Answer: C) Yellow. 9. When a Newtons disc is rotated at high speed, the colours of the disc would blend and give A) No colour. B) Black colour. C) Yellow colour. D) White colour. Show Answer Correct Answer: D) White colour. 10. Which of the following lamp types would most likely be used to light a large outdoor sporting event where accurate color rendition and efficiency are both important? A) Halogen. B) Metal Halide. C) Incandescent. D) Low pressure sodium. Show Answer Correct Answer: B) Metal Halide. 11. This object will magnify things close up A) Prism. B) Convex lens. C) Concave lens. D) Translucent. Show Answer Correct Answer: B) Convex lens. 12. Lunar Eclipse Occurs when Sun Moon Earth come in the order ..... A) Sun Moon Earth. B) Sun Earth Moon. C) Moon Earth Sun. D) Earth Moon Sun. Show Answer Correct Answer: B) Sun Earth Moon. 13. Potential Energy is directly proportional to ..... A) Mass and height of the body. B) Mass, height and acceleration due to gravity. C) Height of the body. D) None of these. Show Answer Correct Answer: B) Mass, height and acceleration due to gravity. 14. When light does not reflect or refracts it is taken in by an object A) Absorbs. B) Opinion. C) Refract. D) Reflect. Show Answer Correct Answer: A) Absorbs. 15. *Plants and plant-like organisms make their own food or energy (glucose) from sunlight. A) Saprophytes. B) Autotrophs. C) Heterotrophs. D) Chemotrophs. Show Answer Correct Answer: B) Autotrophs. 16. The image which form in a mirror is called A) Real image. B) Virtual image. C) All the above. D) None of the above. Show Answer Correct Answer: B) Virtual image. 17. Occurs in the stroma (the fluid part of the chloroplast). 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. Change in direction of a wave as it passes from one medium into another at an angle. A) Reflection. B) Refraction. C) Scattering. D) Absorption. Show Answer Correct Answer: B) Refraction. 19. Rainbow colours are denoted as- A) Fiber. B) Vibgoyr. C) VBIGYOR. D) Fiber. Show Answer Correct Answer: A) Fiber. 20. Solar Eclipse occurs when the Earth Sun and Moon come in this order ..... A) Sun Moon Earth. B) Moon Earth Sun. C) Sun Earth Moon. D) Earth Moon Sun. Show Answer Correct Answer: A) Sun Moon Earth. 21. Which has more energy than visible light? A) Microwaves. B) Radio waves. C) Infrared light. D) Gamma rays. Show Answer Correct Answer: D) Gamma rays. 22. A person is blind if ..... A) Rods are absent in his eyes. B) Image is formed on blind spot. C) Image is formed on Retina. D) Cones are absent in his eyes. Show Answer Correct Answer: B) Image is formed on blind spot. 23. Which of the following lenses would you prefer to use while reading small letters of newspaper? A) A concave lens of focal length 50 cm. B) A convex lens of focal length 5 cm. C) A convex lens of focal length 50 cm. D) A concave lens of focal length 5 cm. Show Answer Correct Answer: B) A convex lens of focal length 5 cm. 24. How many images are formed when two plane mirrors are kept parallel to each other. A) 3 Images. B) Infinite Images. C) 2 Images. D) 1 Images. Show Answer Correct Answer: B) Infinite Images. 25. Position of reflection when the object is placed in 2f in front of convex mirror A) At f. B) At 2f. C) Beyond 2F. D) F and between 2f. Show Answer Correct Answer: B) At 2f. 26. ..... is a from of energy that we can see with our eyes. A) Shadow. B) Reflection. C) Energy. D) Light. Show Answer Correct Answer: D) Light. 27. What was Ibn-al-Haytham most important discovery? A) Light travels in straight lines and enters our eyes. B) We can see because light enters our eyes and bounces back. C) Light can be reflected. D) None of the above. Show Answer Correct Answer: A) Light travels in straight lines and enters our eyes. 28. How many G3P is needed to convert to a one molecule of glucose? A) 3. B) 2. C) 1. D) 4. E) 5. Show Answer Correct Answer: B) 2. 29. A ray of light is the path along which light travels A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 30. Far point of human eye is A) 52 cm. B) Infinite. C) 25 cm. D) 50 cm. Show Answer Correct Answer: B) Infinite. 31. 1 ) Which Colour has the longest wavelength? A) A ) Violet. B) D ) Green. C) C ) Blue. D) B ) Red. Show Answer Correct Answer: D) B ) Red. 32. The windows that you can easily see through is transparent. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 33. The image formed by spherical mirror is virtual. The mirror will be A) Concave. B) Convex. C) Either concave or convex. D) None of these. Show Answer Correct Answer: C) Either concave or convex. 34. ..... cell sense colours in retina A) Rods. B) Cones. C) Both a and b. D) Optic nerve. Show Answer Correct Answer: B) Cones. 35. When light is reflected it ..... A) Slows down. B) Bounces back. C) Stops. D) Bends in many directions. Show Answer Correct Answer: B) Bounces back. 36. A material that DOES NOT allow light to pass through it. A) Opaque. B) Prism. C) Transparent. D) Translucent. Show Answer Correct Answer: A) Opaque. 37. Objects that reflect ALL colors will appear ..... ? A) Gray. B) White. C) Black. D) Multi-colored. Show Answer Correct Answer: B) White. 38. Which material is transparent? A) Shoe. B) Clear glass. C) Wax paper. D) Tissue paper. Show Answer Correct Answer: B) Clear glass. 39. Used to cook with A) Infrared. B) Microwaves. C) Ultraviolet (UV). D) Radio. E) X-Rays. Show Answer Correct Answer: B) Microwaves. 40. When the left side of an object appears as the right side of the image and vice versa, this phenomenon is called A) Literally inversion. B) Lateral Invasion. C) Lateral Inversion. D) Literally Invasion. Show Answer Correct Answer: C) Lateral Inversion. 41. What is a way of changing direction of light A) Refraction. B) I do not know. C) Reflection. D) Dispersion. Show Answer Correct Answer: C) Reflection. 42. A window is opaque which means it stops all light A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 43. ..... is a mid point of the pole and the centre of the curvature. A) Focal length. B) Centre. C) Radius of creature. D) Focus. Show Answer Correct Answer: D) Focus. 44. An object that absorbs all the colors in the visible spectrum will appear? A) Red. B) Black. C) Invisible. D) White. Show Answer Correct Answer: B) Black. 45. When we stand in front of our dressing table, our left hand seems to be right and right seems to be left. This phenomenon is called: A) Illusory image. B) Directional contradiction. C) Lateral inversion. D) Lateral projection. Show Answer Correct Answer: C) Lateral inversion. 46. ..... objects cast dark shadows. A) Transparent. B) Translucent. C) Rough. D) Opaque. Show Answer Correct Answer: D) Opaque. 47. A candle is kept between F and P of a concave mirror. Can this image be projected on a screen? A) Yes it can be. B) No it cannot be. C) Cannot be predicted. D) None of the above. Show Answer Correct Answer: B) No it cannot be. 48. A dark shape formed when an opaque object is placed in the way of light is called ..... A) Heat. B) Transparent. C) Shadow. D) Glass. Show Answer Correct Answer: C) Shadow. 49. Which of the following is a synonym for the phrase "soak up" ? A) Absorb. B) Reflect. C) Refract. D) None of the above. Show Answer Correct Answer: A) Absorb. 50. Which type of image formed by plane mirror? A) Same size. B) Erect. C) Virtual. D) All of the above. Show Answer Correct Answer: D) All of the above. 51. A lens that curves inward A) Concave. B) Convex. C) All the above. D) None of the above. Show Answer Correct Answer: A) Concave. 52. Which object would a sound wave travel the fastest through? A) Brick wall. B) Pool. C) Oxygen. D) Lake. Show Answer Correct Answer: A) Brick wall. 53. Objects that generate their own light are called: A) Non-luminous objects. B) Reflective objects. C) Illuminated objects. D) Luminous objects. Show Answer Correct Answer: D) Luminous objects. 54. Shadow is sharpest during A) Star light. B) Dim light. C) Day light. D) Night light. Show Answer Correct Answer: C) Day light. 55. A medium that allows NO light to pass through A) Solid. B) Transparent. C) Opaque. D) Translucent. Show Answer Correct Answer: C) Opaque. 56. All light passes through materials= ..... A) Opaque. B) Transparent. C) Translucent. D) None of the above. Show Answer Correct Answer: B) Transparent. 57. A light year is ..... A) The speed light travels. B) How long it takes light to get to you from the sun. C) How many years it takes light to be emitted. D) The distance light can travel in a year. Show Answer Correct Answer: D) The distance light can travel in a year. 58. If you touch your ..... ear with right hand in front of a plane mirror, it will be seen that the your right ear is touched with ..... hand A) Left, Right. B) Right, Left. C) Right, Right. D) Left, Left. Show Answer Correct Answer: D) Left, Left. 59. Rainbows are produced when A) Light exits many raindrops at different angles. B) The spectrum causes a rainstorm. C) The sun causes a rainstorm. D) The sun comes out after a storm. Show Answer Correct Answer: A) Light exits many raindrops at different angles. 60. A shadow is created when ..... A) An object blocks the light. B) An object lets light pass thru. C) An object is above light. D) None of the above. Show Answer Correct Answer: A) An object blocks the light. ← 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 6Class 7 Science Chapter 11 Light Quiz 7Class 7 Science Chapter 11 Light Quiz 8Class 7 Science Chapter 11 Light Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books