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Author Question: An object is placed 100 cm in front of a diverging lens with a focal length of magnitude 25 cm. A ... (Read 58 times)

stevenposner

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on: Jul 29, 2018
An object is placed 100 cm in front of a diverging lens with a focal length of magnitude 25 cm. A converging lens having a focal length of magnitude 33.33 cm is placed 30 cm past the first lens. Where is the final image formed?
 
  A) 3.0 meters before the second lens
  B) 100 cm after the second lens
  C) 30 cm after the second lens
  D) 20 cm in front of the first lens
  E) 3.0 cm before the second lens

Question 2

Light of wavelength 580 nm is incident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the position of the first order dark fringe from the center of the screen.
 
  A)
 
  0.26 mm
  B)
 
  1.9 mm
  C)
 
  3.9 mm
  D)
 
  4.3 mm
  E)
 
  7.7 mm


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babybsemail

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

B

Answer to Question 2

C


stevenposner

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Reply 2 on: Jul 29, 2018
Gracias!

sultana.d

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Reply 3 on: Yesterday
:D TYSM

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