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Author Question: When a star collapses to half size, the gravitational field at its surface A) doubles. B) ... (Read 100 times)

Sportsfan2111

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on: Jul 29, 2018
When a star collapses to half size, the gravitational field at its surface
 
  A) doubles.
  B) quadruples.
  C) increases eightfold.
  D) remains constant.

Question 2

Compared to the event horizon, the photon sphere of a black hole is
 
  A) nearer the singularity.
  B) farther from the singularity.
  C) at the same location.


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kingfahad97

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

Answer: B

Answer to Question 2

Answer: B


Sportsfan2111

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Reply 2 on: Jul 29, 2018
Excellent

carlsona147

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Reply 3 on: Yesterday
Wow, this really help

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