Q:

The term ‘refraction’ may be applied to which of the following?

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The term ‘refraction’ may be applied to which of the following?


  1. The effect on light rays as they enter the cornea of the eye.
  2. Light rays from an object meeting at a point to form a sharp image.
  3. A light ray travelling away from a surface at the same angle that the light ray approached the surface.
  4. A light ray travelling through glass with a faster speed than it would have in air

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A: the cornea bends (refracts) light that enters the eye.

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