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Author Question: Which design is subject to chromatic aberration? A) refractor B) prime focus reflector C) ... (Read 114 times)

LaDunn

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on: Jul 27, 2018
Which design is subject to chromatic aberration?
 
  A) refractor
  B) prime focus reflector
  C) Newtonian reflector
  D) Cassegrain reflector
  E) Gregorian reflector

Question 2

Why does the rotation of a protostar slow down over time?
 
  A) All rotating objects slow down over time.
  B) Magnetic fields can transfer angular momentum to the protostellar disk and protostellar winds can carry angular momentum away.
  C) The onset of fusion causes the rotation rate to slow dramatically.
  D) Magnetic fields of other stars interact with the magnetic fields of the protostars, slowing its rotation.


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14vl19

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

B


LaDunn

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

xiaomengxian

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Reply 3 on: Yesterday
Excellent

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