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Author Question: The number of significant figures in 0.01500 is A) two. B) three. C) four. D) ... (Read 25 times)

jilianpiloj

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on: Jul 29, 2018
The number of significant figures in 0.01500 is
 
  A) two.
  B) three.
  C) four.
  D) five.

Question 2

A light ray in air strikes a glass plate whose index of refraction is 1.42. Some of the light reflects off the surface of the plate, but most of it enters the glass.
 
  If the angle of refraction is one-half the angle of reflection, the angle of refraction is closest to which one of the following angles? A) 45
  B) 43
  C) 41
  D) 39
  E) 37
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maaaaaaaaaa

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Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

A


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