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Author Question: The length of a telescope is 2.20 m and the focal length of the eyepiece is 1.9 cm. What is the ... (Read 73 times)

strangeaffliction

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on: Jul 29, 2018
The length of a telescope is 2.20 m and the focal length of the eyepiece is 1.9 cm. What is the focal length of the objective lens?
 
  A) 41 cm
  B) 45 cm
  C) 111 cm
  D) 218 cm
  E) 16 cm

Question 2

A circuit contains a 2.0-M resistor in series with an uncharged capacitor. When this combination is connected across an ideal battery,
 
  the capacitor reaches 25 of its maximum charge in 1.5 s. What is its capacitance?
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amynguyen1221

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

D

Answer to Question 2

2.6 F


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