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Author Question: An object is placed 21 cm from a concave lens of focal length 25 cm. What is the magnification? ... (Read 62 times)

lak

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on: Jul 29, 2018
An object is placed 21 cm from a concave lens of focal length 25 cm. What is the magnification?
 
  A)
 
  -0.54
  B)
 
  0.54
  C)
 
  -0.32
  D)
 
  -0.22
  E)
 
  0.22

Question 2

The scalar product is commutative.
 
  Indicate whether the statement is true or false


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robbielu01

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

B

Answer to Question 2

TRUE


lak

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Reply 2 on: Jul 29, 2018
Excellent

31809pancho

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Reply 3 on: Yesterday
Gracias!

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