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Q: A ray of light goes from water to glass. Its-
  • A. speed increases towards normal.
  • B. speed increases and away from the normal
  • C. slow down a towards the normal
  • D. slow down and away from normal
Correct Answer: Option C - A ray of light goes from water to glass. Its speed decreases and bends towards the normal.
C. A ray of light goes from water to glass. Its speed decreases and bends towards the normal.

Explanations:

A ray of light goes from water to glass. Its speed decreases and bends towards the normal.