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Author Question: What is the period of a signal that has a frequency of 60 Hz? a. 60 s c. 1/60 s b. 60 s-1 d. not ... (Read 70 times)

Caiter2013

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on: Jul 28, 2018
What is the period of a signal that has a frequency of 60 Hz?
 a. 60 s c. 1/60 s
  b. 60 s-1 d. not determinable

Question 2

Which expression gives the speed of light v in a substance in terms of the index of refraction n of a substance and the speed of light c in a vacuum?
 a. v = c/n
  b. v = c n
  c. v = c + n
  d. v = n/c
  e. v = c/n2


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joewallace

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

C

Answer to Question 2

a


Caiter2013

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Reply 2 on: Jul 28, 2018
Gracias!

xiaomengxian

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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