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Author Question: Which of the following is the most similar, in its operation, to a photovoltaic cell? A) ... (Read 68 times)

Lisaclaire

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on: Jul 29, 2018
Which of the following is the most similar, in its operation, to a photovoltaic cell?
 
  A) fluorescent light bulb
  B) geothermal energy
  C) fossil-fuel electric power plant
  D) battery
  E) automobile engine

Question 2

If an x-ray beam of wavelength 1.4  10-10 m makes an angle of 20 with a set of planes in a crystal causing first order constructive interference, at what angle will the second order line appear?
 
  A) 40
  B) 20
  C) 43
  D) 4.0
  E) 11


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chinwesucks

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

D

Answer to Question 2

C


Lisaclaire

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

apple

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Reply 3 on: Yesterday
Excellent

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