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Reflection & Refraction

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  • In refraction ,the angle of incidence is equal to the angle of refraction . True or False
    False
  • The bouncing back of light when it hits a surface is called..........
    Reflection
  • The point where rays of light converge is called..............
    Focal point
  • Light travels in a _______________ line
    Straight
  • Mention the law of Reflection
    The angle of incidence is equal to the angle of reflection.
  • Why does the straw appear to be bent?
    light is refracted
  • What is refraction ?
    Light changes direction and speed when it passes through 2 different mediums
  • Draw the refracted ray: light travels from air into a block of glass
  • Light moves slower through a more dense medium. True or False
    True
  • True or False: The angle of reflection is always greater than the angle of incidence
    False
  • If a light ray strikes a mirror at 40 degrees, the angle of reflection will be..............degrees
    40
  • True or False: Refraction occurs because light changes speed when it enters a different medium.
    True
  • Draw the refracted ray: light travels from air into a block of glass
  • The incoming ray of light before it strikes a mirror is called the...............ray
    Incident
  • The outgoing ray of light after it bounces off a mirror is called the......................ray
    Reflected
  • A.................... is a material such as water, glass, or air
    Medium
  • Something our eyes see, but it is not real is called..................
    Optical illusion
  • Wood and cardboard are _____ materials that light cannot travel through.
    Opaque
    Transparent
    Translucent
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