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Author Question: The objective lens of a telescope has a focal length of 1.90 m. When viewed through this telescope, ... (Read 70 times)

joesmith1212

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on: Jul 29, 2018
The objective lens of a telescope has a focal length of 1.90 m. When viewed through this telescope, the Moon appears 5.25 times larger than normal.
 
  How far apart are the objective lens and the eyepiece when this instrument is focused on the Moon?

Question 2

A series RLC circuit has a 100- resistor, a 0.100-F capacitor and a 2.00-mH inductor connected across a 120-V rms ac voltage source operating at 1000/ Hz. What is the resonant frequency of this circuit?
 
  A) 70.7 kHz
  B) 17.9 kHz
  C) 22.5 kHz
  D) 35.3 kHz
  E) 11.3 kHz


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popopong

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

2.26 m

Answer to Question 2

E


joesmith1212

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Reply #2 on: Jul 29, 2018
Thank you!


popopong

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Reply #3 on: Jul 29, 2018
Always glad to help...


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