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Author Question: Dark matter has not been observed at any electromagnetic wavelength. Indicate whether the ... (Read 41 times)

nautica902

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on: Jul 27, 2018
Dark matter has not been observed at any electromagnetic wavelength.
 
  Indicate whether the statement is true or false

Question 2

Explain an advantage a good refractor corrected for chromatic aberration has over any design of reflector of the same size.
 
  What will be an ideal response?


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itsakadoozi

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

TRUE

Answer to Question 2

The lenses of the refractor can transmit more light without any central obstruction due to the secondary mirror, and thus form a shaper, crisper image with better contrast than can the reflector designs.


nautica902

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Reply 2 on: Jul 27, 2018
Excellent

aliotak

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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