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Author Question: What wavelength monochromatic source in the visible region (390 to 710 nm) can be used to ... (Read 86 times)

cartlidgeashley

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on: Jul 28, 2018
What wavelength monochromatic source in the visible region (390 to 710 nm) can be used to constructively reflect off a soap film (n = 1.46) in air if the film is 288 nm thick?
 a. 561 nm
  c. 587 nm
  b. 480 nm
  d. 467 nm

Question 2

John rapidly pulls a plunger out of a cylinder, increasing its volume. As the plunger moves away, the gas molecules bouncing elastically off the plunger are:
 a. rebounding at a higher speed than they would have if the plunger weren't removed. b. rebounding at a lower speed than they would have if the plunger weren't removed. c. rebounding at the same speed as they would have if the plunger weren't removed. d. Whether they speed up or slow down depends on how fast the plunger is removed.


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phuda

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

A

Answer to Question 2

B


cartlidgeashley

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Reply #2 on: Jul 28, 2018
Thanks


phuda

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


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