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Author Question: In a Young's double slit experiment, what is the ratio of the intensity at a point where the ... (Read 70 times)

karlynnae

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on: Jul 29, 2018
In a Young's double slit experiment, what is the ratio of the intensity at a point where the electric fields are out of phase by 30 to the central intensity.
 
  A)
 
  0.93
  B)
 
  1.9
  C)
 
  2.1
  D)
 
  0.47
  E)
 
  0.75

Question 2

A 425-g piece of metal at 100C is dropped into a 100-g aluminum cup containing 500 g of water at 15C. The final temperature of the system is 40C.
 
  What is the specific heat of the metal, assuming no heat is exchanged with the surroundings? The specific heat of aluminum is 900 J/(kgK).
  A)
 
  1900 J/(kgK)
  B)
 
  2140 J/(kgK)
  C)
 
  3300 J/(kgK)
  D)
 
  3800 J/(kgK)
  E)
 
  4280 J/(kgK)


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pami445

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

A

Answer to Question 2

B


karlynnae

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


pami445

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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