What problem do refractor telescopes have that reflectors don't? ...

[EAugust]

What problem do refractor telescopes have that reflectors don't?
 
  A) chromatic aberration
  B) light loss from secondary elements
  C) diffraction limited resolution
  D) atmospheric blurring
  E) bad seeing

Question 2

Because of its axial tilt and more elliptical orbit, Mars' polar caps change size even more than the Earth's do.
 
  Indicate whether the statement is true or false

[blakcmamba]

Answer to Question 1

A

Answer to Question 2

TRUE

[EAugust]

Gracias!

[alexanderhamilton]

Thanks for the timely response, appreciate it