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Author Question: A converging lens with the same curvature on both faces and a focal length of 25 cm is to be made ... (Read 21 times)

JMatthes

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on: Jul 29, 2018
A converging lens with the same curvature on both faces and a focal length of 25 cm is to be made from crown glass having a refractive index of 1.52. What radius of curvature is required for each face?
 
  What will be an ideal response?

Question 2

A flat circular loop of wire of radius 0.50 m that is carrying a 2.0-A current is in a uniform magnetic field of 0.30 T. What is the magnitude of the magnetic torque on the loop when the plane of its area is perpendicular to the magnetic field?
 
  A) 0.00 N  m
  B) 0.41 N  m
  C) 0.47 N  m
  D) 0.52 N  m
  E) 0.58 N  m


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emily12345

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

26 cm

Answer to Question 2

A


JMatthes

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Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

emsimon14

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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