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Lesson: Image Production Using Lenses

Question Video: Finding the Magnification of a Convex Lens

02:44

Worksheet: Image Production Using Lenses • 12 Questions

Q1:

A lens is used to produce a real image that is the same size as the object that produced it. Which of the following statements about the distance between the lens and the object is true?

  • AThe distance from the object to the lens is twice the lens’s focal length.
  • BThe distance from the object to the lens is more than twice the lens’s focal length.
  • CThe distance from the object to the lens is less than the lens’s focal length.
  • DThe distance from the object to the lens is less than twice the lens’s focal length but is at least as far as the lens’s focal length.

Q2:

Which of the following statements is not a correct statement about real images?

  • AA real image can be produced by a convex lens and by a concave lens.
  • BA real image is inverted compared to the object that it is an image of.
  • CA real image is produced on the side of a lens opposite to the object that produces the image.
  • DA real image can be projected on a screen.

Q3:

A convex lens produces a real image that is projected on a screen, and then the screen is moved away from the lens, resulting in a blurred image, as shown in the diagram. Which of the following statements most correctly explains how the image projected onto the screen changes when the screen is moved?

  • AEach point on the object is imaged in more than one position on the screen.
  • BThe lens is not perfect.
  • CThe image becomes faded as light travels further to a more distant screen.
  • DDestructive interference occurs.
  • EThe image is converted to a virtual image.
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