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Author Question: A light beam with wavelength 440. nm in a material then enters air and its wavelength becomes 577. ... (Read 203 times)

yoooooman

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on: Jul 27, 2018
A light beam with wavelength 440. nm in a material then enters air and its wavelength becomes 577. nm.
 
  (a) What is the index of refraction for the material?
  (b) At what angle with the surface will the beam be totally reflected back in the material?

Question 2

A doubly charged ion with velocity 6.0  106 m/s moves in a path of radius 30. cm in a magnetic field of 0.80 T in a mass spectrometer. What is the mass of this ion?
 
  A) 12.8  10-27 kg
  B) 16.4  10-27 kg
  C) 6.68  10-27 kg
  D) 3.34  10-27 kg
  E) 8.22  10-27 kg


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wuly

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Reply #1 on: Jul 27, 2018
Answer to Question 1

(a) 1.31
(b) 40.3

Answer to Question 2

A


yoooooman

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Reply #2 on: Jul 27, 2018
TY


wuly

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Reply #3 on: Jul 27, 2018
You're welcome


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