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6.2 Refraction

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  • How do prisms use refraction to create rainbows?
    They bend and split white light into different colors.
  • How does a convex lens affect light rays?
    It makes them converge (come together) at a focal point.
  • How is refraction useful in eyeglasses?
    Lenses bend light to help focus images correctly on the retina.
  • How does refraction help magnifying glasses work?
    The convex lens bends light to make objects appear larger.
  • What happens to light when it passes through a convex lens?
    It bends inward and focuses to a point.
  • Give an example of refraction in everyday life.
    A straw appearing bent in a glass of water.
  • What is refraction?
    Refraction is when light changes direction as it passes from one medium to another.
  • What is the difference between reflection and refraction?
    Reflection is when light bounces off a surface, while refraction is when light bends as it passes through a different medium.
  • Why does light refract when it enters a different medium?
    Because light travels at different speeds in different materials.
  • What happens to light when it moves from water into air?
    It speeds up and bends away from the normal.
  • What is the focal point of a convex lens?
    The point where refracted light rays meet.
  • What causes optical illusions related to water?
    Refraction, because light bends as it passes from air to water, making objects look different.
  • What is a medium in terms of light?
    The material that light travels through, such as air, water, or glass.
  • What happens to light when it moves from air into water?
    It slows down and bends towards the normal.
  • Why do objects under water appear closer than they really are?
    Because light bends when it moves from water to air, making objects seem shifted.
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