science
Grade6
Easy

Question

In which of the following conditions does the light bend?

  1. When it moves through a narrow hole
  2. When it passes by a sharp edge
  3. When it gets into another medium
  4. All of the above

hintHint:

If light enters into a substance with a lower refractive index (such as from water into air) it speeds up.

The correct answer is: All of the above


    • If light enters any substance with a higher refractive index (such as from air into glass) it slows down. The light bends towards the normal line. If light enters into a substance with a lower refractive index (such as from water into air) it speeds up. The light bends away from the normal line.

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