This chapter is all about understanding light, which is a vital part of our everyday lives. Light is a form of energy that allows us to see everything around us. It travels very fast and in straight lines. By learning about light, we can better understand how we see things and how light behaves in different situations.
In this chapter, you will learn about how light can reflect off surfaces, like when you see yourself in a mirror. You’ll also discover how light can bend when it passes through objects like water or glass, a process called refraction. Additionally, we will explore how white light can split into different colors, a phenomenon known as dispersion. These concepts are not only interesting but also help us understand many natural and technological processes.
To help you grasp these ideas, we have prepared a set of multiple-choice questions (MCQs). These MCQs on Light for Class 7 Science are designed to test your knowledge and make learning fun and interactive. By answering these questions, you can check your understanding and see how well you know the topic of light. Let’s get started and brighten up our knowledge about light!
Class 7 Science MCQs on Light
Ques 1. The coloured band of light obtained by dispersion of light is called:
(a) image
(b) spectrum
(c) convergence
(d) scattering
Answer: (b) spectrum
Ques 2. The image formed by a convex mirror is:
(a) erect and diminished
(b) erect and enlarged
(c) inverted and diminished
(d) inverted and enlarged
Answer: (a) erect and diminished
Ques 3. Light is a form of:
(a) Energy
(b) Power
(c) Heat
(d) Temperature
Answer: (a) Energy
Ques 4. Which one shows lateral inversion?
(a) Plane mirror
(b) Convex mirror
(c) Concave mirror
(d) All of these
Answer: (a) Plane mirror
Ques 5. The image which can be caught on a screen is called:
(a) Real image
(b) Virtual image
(c) Shadow
(d) Impression
Answer: (a) Real image
Ques 6. When white light is passed into a prism it splits into:
(a) Seven colours
(b) Eight colours
(c) Five colours
(d) Three colours
Answer: (a) Seven colours
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Ques 7. Which of the following can be used to form a real image?
(a) Concave mirror only
(b) Plane mirror only
(c) Convex mirror only
(d) Both concave and convex mirrors
Answer: (a) Concave mirror only
Ques 8. An image formed by a lens is erect. Such an image could be formed by a:
(a) convex lens provided the image is smaller than object
(b) concave lens provided the image is smaller than object
(c) concave lens provided the image is larger than object
(d) concave lens provided the image is of the same size
Answer: (b) concave lens provided the image is smaller than object
Ques 9. You are provided with a concave mirror, a convex mirror, a concave lens and a convex lens. To obtain an enlarged image of an object you can use either:
(a) concave mirror or convex mirror
(b) concave mirror or convex lens
(c) concave mirror or concave lens
(d) concave lens or convex lens
Answer: (b) concave mirror or convex lens
Ques 10. The middle colour in sunlight spectrum is:
(a) yellow
(b) green
(c) blue
(d) orange
Answer: (b) green
Ques 11. If an object is placed at a distance of 0.5 m in front of a plane mirror, the distance between the object and the image formed by the mirror will be:
(a) 2 m
(b) 1 m
(c) 0.5 m
(d) 0.25 m
Answer: (b) 1 m
Ques 12. Splitting of white light into seven colours is called:
(a) reflection of light
(b) Rectilinear propagation of light
(c) Lateral inversion
(d) Dispersion
Answer: (d) Dispersion
Ques 13. The object in which seven colours spread over it appears to be white in colour when rotated is Called:
(a) Galileo’s disc
(b) Newton’s disc
(c) Rutherford’s disc
(d) Faraday’s disc
Answer: (b) Newton’s disc
Ques 14. Rectilinear propagation is:
(a) mode of travelling in curved lines
(b) mode of travelling in straight lines
(c) ability to bend around obstacles
(d) displaying the phenomenon of diffraction
Answer: (b) mode of travelling in straight lines
Ques 15. The path of the light is:
(a) always a straight line
(b) a curved line
(c) a zig-zag line
(d) depends on the medium
Answer: (a) always a straight line
Ques 16. Looking through a lens at the sun or a bright light is:
(a) easy
(b) dangerous
(c) difficult
(d) good
Answer: (b) dangerous
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Ques 17. Which colour of light scattered least:
(a) Green
(b) Yellow
(c) Red
(d) Blue
Answer: (c) Red
Ques 18. Change in the path of light after striking a mirror is called:
(a) reflection of light
(b) Rectilinear propagation of light
(c) Lateral inversion
(d) Dispersion
Answer: (a) reflection of light
Ques 19. Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli are, respectively:
(a) plane mirror and concave mirror
(b) concave mirror and convex mirror
(c) plane mirror and convex mirror
(d) convex mirror and plane mirror
Answer: (c) plane mirror and convex mirror
Ques 20. Which of the following is used as a side view mirror?
(a) Plane mirror
(b) Concave mirror
(c) Convex mirror
(d) Convex lens
Answer: (c) Convex mirror
Ques 21. Image formed by a plane mirror is:
(a) virtual and erect
(b) real and erect
(c) virtual and inverted
(d) real and inverted
Answer: (a) virtual and erect
Ques 22. When the Newton’s disc is rotated what happens:
(a) The colours fade to white
(b) The colours fade to black
(c) Rutherford’s disc
(d) Faraday’s disc
Answer: (a) The colours fade to white
Ques 23. Concave lens is also known as:
(a) Converging lens
(b) Diverging lens
(c) Bifocal length
(d) Biconcave lens
Answer: (b) Diverging lens
Ques 24. An erect and enlarged image can be formed by:
(a) only a convex mirror
(b) only a concave mirror
(c) only a plane mirror
(d) both convex and concave mirror
Answer: (b) only a concave mirror
Ques 25. …………..refers to collection of rays.
(a) Shadow
(b) Photon
(c) Beam
(d) Image
Answer: (c) Beam
Ques 26. Light travels in
(a) Curved lines
(b) In circular path
(c) In straight line
(d) Zig-zag path
Answer: (c) In straight line
Ques 27. When light bounces off a surface, the surface is
(a) Transparent
(b) Reflector
(c) Opaque
(d) Translucent
Answer: (b) Reflector
Ques 28. Rectilinear propagation is
(a) mode of travelling in curved lines
(b) mode of travelling in straight lines
(c) ability to bend around obstacles
(d) displaying the phenomenon of diffraction
Answer: (b) mode of travelling in straight lines
Ques 29. A virtual image larger than the object can be produced by a
(a) Plane Mirror
(b) Concave mirror
(c) Convex mirror
(d) All of the above
Answer: (b) Concave mirror
Ques 30. The light that is reflected from a compact disc (CD) consists of
(a) Seven colours
(b) Eight colours
(c) Five colours
(d) Three colours
Answer: (a) Seven colours
Ques 31. The image which can be caught on a screen is called
(a) Real image
(b) Virtual image
(c) Shadow
(d) Impression
Answer: (a) Real image
Ques 32. Latha is observing her image in a plane mirror. The distance between the mirror and her image is 6m. If she moves 2m towards the mirror, then the distance between Latha and her image will be
(a) 8m
(b) 4m
(c) 10m
(d) 5m
Answer: (a) 8m
Ques 33. Image of objects spread over a large area form in:
(a) concave mirror
(b) virtual mirror
(c) spherical mirror
(d) convex mirror
Answer: (a) concave mirror
Ques 34. Which of the following is used as a side view mirror?
(a) Plane mirror
(b) Concave mirror
(c) Convex mirror
(d) Convex lens
Answer: (c) Convex mirror
Ques 35. Sunlight is
(a) Red in colour
(b) Green in colour
(c) Yellow in colour
(d) White in colour
Answer: (d) White in colour
Ques 36. A diverging mirror is
(a) a plane mirror
(b) a convex mirror
(c) a concave mirror
(d) a shaving mirror
Answer: (b) a convex mirror
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Ques 37. When white light is passed into a prism it splits into
(a) Seven colours
(b) Eight colours
(c) Five colours
(d) Three colours
Answer: (a) Seven colours
Ques 38. A virtual image
(a) can be formed on the screen
(b) cannot be formed on the screen
(c) is formed only by the plane mirror
(d) is formed only by the convex mirror
Answer: (b) cannot be formed on the screen
Ques 39. The image formed by a concave lens is always virtual, erect and:
(a) bigger in size
(b) smaller in size
(c) medium in size
(d) all of these
Answer: (a) bigger in size
Ques 40. In order to be used as mirrors, glasses are coated with
(a) silver
(b) copper
(c) aluminium
(d) platinum
Answer: (a) silver
Ques 41. The sunlight is said to be white light, a prism splits sunlight into:
(a) seven colours
(b) seventeen colours
(c) seven hundred colours
(d) seventy colours
Answer: (a) seven colours
Ques 42. If an object is placed at a distance of 0.5 m in front of a plane mirror, the distance between the object and the image formed by the mirror will be
(a) 2 m
(b) 1 m
(c) 0.5 m
(d) 0.25 m
Answer: (b) 1 m
Ques 43. Light is
(a) an electromagnetic radiation
(b) a transverse wave
(c) massless
(d) All of the above
Answer: (d) All of the above
Ques 44. Looking through a lens at the sun or a bright light is:
(a) easy
(b) dangerous
(c) difficult
(d) good
Answer: (b) dangerous
Ques 45. A plane mirror produces a
(a) virtual and erect image
(b) virtual and inverted image
(c) real and erect image
(d) real and inverted image
Answer: (a) virtual and erect image
Ques 46. Which colour of light is scattered least?
(a) Green
(b) Yellow
(c) Red
(d) Blue
Answer: (c) Red
Ques You are provided with a convex mirror, a concave mirror, a convex lens and a concave lens. You can get an inverted image from
(a) bo47.th concave lens and convex lens
(b) both concave mirror and convex mirror
(c) both convex mirror and convex lens
(d) both convex mirror and concave lens
Answer: (c) both convex mirror and convex lens
Ques 48. Band of seven colours of light appeared on screen when white light passes through a prism is called
(a) Spectrum
(b) Refractive index
(c) Angle of deviation
(d) Colour band
Answer: (a) Spectrum
Ques 49. The object in which seven colours spread over it appears to be white in colour when rotated is called
(a) Galileo’s disc
(b) Newton’s disc
(c) Rutherford’s disc
(d) Faraday’s disc
Answer: (b) Newton’s disc
Ques 50. The image formed by a concave mirror can be smaller or larger in size than the object; the image may also be real or:
(a) erect
(b) virtual
(c) convex
(d) concave
Answer: (a) erect
Ques 51. A convex lens is
(a) thick at centre
(b) thin at the centre
(c) thick at edges
(d) hollow at the centre
Answer: (a) thick at centre
Ques 52. Type of mirror that is used as a rear-view mirror in case of vehicles is
(a) Concave mirror
(b) Convex mirror
(c) Plane mirror
(d) None of these
Answer: (b) Convex mirror
Ques 53. Image formed by a convex mirror is a
(a) Virtual image
(b) Erect
(c) Diminished
(d) All of the above
Answer: (d) All of the above
Ques 54. If reflecting surface is convex, then it is a:
(a) concave mirror
(b) erect
(c) virtual
(d) convex mirror
Answer: (d) convex mirror
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Ques 55. The image of objects spread over a large area forms in:
(a) concave mirror
(b) virtual mirror
(c) spherical mirror
(d) convex mirror
Answer: (a) concave mirror
Ques 56. The image formed by a concave lens is always virtual, erect and:
(a) bigger in size
(b) smaller in size
(c) medium in size
(d) all of these
Answer: (a) bigger in size
Ques 57. Light is
(a) an electromagnetic radiation
(b) a transverse wave
(c) massless
(d) All of the above
Answer: (d) All of the above
Ques 58. Looking through a lens at the sun or a bright light is:
(a) easy
(b) dangerous
(c) difficult
(d) good
Answer: (b) dangerous
Ques 59. The sunlight is said to be white light, a prism splits sunlight into:
(a) seven colours
(b) seventeen colours
(c) seven hundred colours
(d) seventy colours
Answer: (a) seven colours
Ques 60. Which colour of light is scattered least?
(a) Green
(b) Yellow
(c) Red
(d) Blue
Answer: (c) Red
Ques 61. A plane mirror produces a
(a) virtual and erect image
(b) virtual and inverted image
(c) real and erect image
(d) real and inverted image
Answer: (a) virtual and erect image
Ques 62. You are provided with a convex mirror, a concave mirror, a convex lens and a concave lens. You can get an inverted image from
(a) both concave lens and convex lens
(b) both concave mirror and convex mirror
(c) both convex mirror and convex lens
(d) both convex mirror and concave lens
Answer: (c) both convex mirror and convex lens
