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Author Question: Green light has a wavelength of 5.4 107 m. What is the frequency of this EM-wave in air? a. 5.55 ... (Read 105 times)

tsand2

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on: Jul 28, 2018
Green light has a wavelength of 5.4  107 m. What is the frequency of this EM-wave in air?
 a. 5.55  1014 Hz
  b. 6.00  1011 Hz
  c. 9.00  108 Hz
  d. 3.00  1010 MHz
  e. 1.80  1015 Hz

Question 2

An extremely large collection of stars bound together by gravitational attraction and occupying a huge volume of space is called a _______________.
 a. planetary nebula
  b. solar system
  c. universe
  d. galaxy


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vickybb89

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

a

Answer to Question 2

d


tsand2

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Reply #2 on: Jul 28, 2018
Thanks


vickybb89

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Reply #3 on: Jul 28, 2018
Welcome :)


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