A diver shines light upward to the surface of a smooth pond at 20 ...

[ARLKQ]

A diver shines light upward to the surface of a smooth pond at 20 to the normal. Most light passes into the air above while the part that reflects back into the water makes an angle to the normal of
 
  A) less than 20.
  B) 20.
  C) more than 20.
  D) all refracts, none reflects.

Question 2

When a light beam emerges from water into air, light speed
 
  A) increases.
  B) decreases.
  C) remains the same.

[harveenkau8139]

Answer to Question 1

Answer: B

Answer to Question 2

Answer: A

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