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Author Question: A thin double convex lens is to focus the image of an object onto a screen so that the image is ... (Read 51 times)

asan beg

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on: Jul 29, 2018
A thin double convex lens is to focus the image of an object onto a screen so that the image is life-sized. The lens surfaces have equal radii of curvature of 112 cm, and the refractive index of the lens material is 1.500.
 
  (a) How far from the lens should the screen be placed?
  (b) How far is the screen from the object?

Question 2

Two identical nuclei of mass 18 u are made to unite to make a single nucleus of mass 36 u. What is the radius of the result of this fusion?
 
  A) 4.5 fm B) 4.0 fm C) 6.3 fm D) 7.2 fm


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ultraflyy23

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

(a) 224 cm (b) 448 cm

Answer to Question 2

B


asan beg

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Reply 2 on: Jul 29, 2018
Gracias!

ryhom

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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