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Author Question: A grating has 450 lines per millimeter. What is the highest order m that contains the entire visible ... (Read 55 times)

yoooooman

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on: Jul 29, 2018
A grating has 450 lines per millimeter. What is the highest order m that contains the entire visible spectrum from 400 nm to 700 nm?
 
  A) m = 2
  B) m = 3
  C) m = 4
  D) m = 5
  E) m = 6

Question 2

The vertical displacement y(x,t) of a horizontal string aligned along the x-axis is given by the equation
 
  y(x,t) = (6.00 mm) cos(3.25 m-1)x - (7.22 s-1)t. What are the (a) wavelength and (b) period of this wave?


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kingfahad97

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

B

Answer to Question 2

(a) 1.93 m (b) 0.870 s


yoooooman

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Reply 2 on: Jul 29, 2018
Excellent

Zebsrer

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Reply 3 on: Yesterday
:D TYSM

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