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Lenses

Quiz by nadine diab

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10 questions
Show answers
  • Q1
    What is a lens?
    A type of camera
    A tool that focuses light onto a sensor or film.
    A type of mirror
    A type of filter
    30s
  • Q2
    What is the purpose of a lens?
    To create abstract art
    To block light from entering a camera
    To reflect light
    To focus light onto a sensor or film.
    30s
  • Q3
    What is the focal point of a lens?
    The point where parallel rays of light converge or appear to converge
    The point where the lens bends the light the most
    The center point of the lens
    The edge of the lens
    30s
  • Q4
    What is the difference between a convex and concave lens?
    A convex lens curves inward and a concave lens curves outward
    A convex lens is flat and a concave lens is curved
    A convex lens curves outward and a concave lens curves inward
    A convex lens is made of glass and a concave lens is made of plastic
    30s
  • Q5
    What is the main function of a lens in a camera?
    To block light from entering the camera
    To add a filter to the image
    To focus light onto the image sensor
    To create a blurred image
    30s
  • Q6
    What happens to light rays when they pass through a convex lens?
    They diverge and spread out
    They pass through without any change
    They reflect back off the lens
    They converge to a point
    30s
  • Q7
    What is the name of the optical effect caused when light is bent by a lens?
    Dispersion
    Absorption
    Refraction
    Reflection
    30s
  • Q8
    What does the term 'focal length' refer to?
    The curvature of the lens
    The distance between the lens and the focal point
    The thickness of the lens
    The distance between the lens and the object being viewed
    30s
  • Q9
    What is the name of the equation used to calculate the magnification of a lens?
    Lens equation
    Magnification formula
    Focal length equation
    Index of refraction formula
    30s
  • Q10
    What is a lens made of?
    Metal
    Transparent material such as glass or plastic
    Stone
    Wood
    30s

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