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Author Question: The__________of a lens or mirror is the distance from that lens or mirror to the point where it ... (Read 75 times)

Davideckstein7

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The__________of a lens or mirror is the distance from that lens or mirror to the point where it focuses parallel rays of light.
 
  A) image distance
  B) focal length
  C) radius of curvature
  D) object distance

Question 2

A__________is a device that separates light by wavelengths to produce a spectrum.
 
  A) lens
  B) mirror
  C) spectrograph
  D) interferometer



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Anonymous

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Answer to Question 1

B

Answer to Question 2

C





 

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