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Author Question: A ray of light is incident on a liquid-to-glass interface at an angle of 42. Indices of refraction ... (Read 125 times)

lindiwe

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on: Jul 28, 2018
A ray of light is incident on a liquid-to-glass interface at an angle of 42. Indices of refraction for the liquid and glass are, respectively, 1.63 and 1.52 . What is the angle of refraction for the ray moving through the glass?
 a. 23
  c. 46
  b. 30
  d. 38

Question 2

A rectangular steel plate with dimensions of 60 cm  25 cm is heated from 20C to 150C. What is its change in area? (Coefficient of linear expansion for steel is 11  10-6/C.)
 a. 0.82 cm2
  c. 4.3 cm2
  b. 1.1 cm2
  d. 6.6 cm2


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k2629

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


lindiwe

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Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

amandalm

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Reply 3 on: Yesterday
:D TYSM

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