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Author Question: The Arecibo radio telescope is laid out like which optical telescope design? A) prime focus ... (Read 88 times)

tingc95

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on: Jul 27, 2018
The Arecibo radio telescope is laid out like which optical telescope design?
 
  A) prime focus reflector
  B) Newtonian reflector
  C) grazing incidence reflector
  D) Cassegrain reflector
  E) Coude reflector

Question 2

Describe the range of sizes and masses of black holes.
 
  What will be an ideal response?


bd5255

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

A

Answer to Question 2

The smallest, a three solar mass black hole, is only about 9 km across, but some in the cores of galaxies may be millions of solar masses and larger than the solar system.


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