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Author Question: If a star that is 10 light-years away from Earth explodes, gravitational waves from the explosion ... (Read 30 times)

lindiwe

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on: Jul 29, 2018
If a star that is 10 light-years away from Earth explodes, gravitational waves from the explosion will reach Earth in
 
  A) less than 10 years.
  B) more than 10 years.
  C) 10 years.

Question 2

A very fine thread is placed between two glass plates on one side and the other side is touching to form a wedge. A beam of monochromatic light of wavelength 600 nm illuminates the wedge and 178 bright fringes are observed.
 
  What is the thickness of the thread? A) 22.3 m
  B) 26.7 m
  C) 32.3 m
  D) 53.3 m
  E) 76.3 m


todom5090

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

Answer: C

Answer to Question 2

D


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