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Author Question: Two mirrors are at right angles to one another. A light ray is incident on the first at an angle of ... (Read 97 times)

ereecah

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on: Jul 28, 2018
Two mirrors are at right angles to one another. A light ray is incident on the first at an angle of 30 with respect to the normal to the surface. What is the angle of reflection from the second surface?
 a. 30
  b. 60
  c. 45
  d. 53
  e. 75

Question 2

A light ray is incident on the surface of water (n = 1.33) at an angle of 60 relative to the normal to the surface. The angle of the reflected wave is
 a. 80
  b. 40
  c. 20
  d. 60
  e. 30


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amit

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

B

Answer to Question 2

D


ereecah

  • Member
  • Posts: 530
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

shailee

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Reply 3 on: Yesterday
Wow, this really help

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