Why must radio telescopes have very large dishes?
A) A large mirror is necessary to resolve radio-emitting images.
B) Radio-emitting objects are very far from Earth, and so are very dim.
C) Large radio telescopes are easier to repair than small instruments.
D) The large dish is to compensate for atmospheric absorption of radio waves.
E) Size is immaterial to quality observations.

Question

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The Answer of Why must radio telescopes have very large dishes?
A) A large mirror is necessary to resolve radio-emitting images.
B) Radio-emitting objects are very far from Earth, and so are very dim.
C) Large radio telescopes are easier to repair than small instruments.
D) The large dish is to compensate for atmospheric absorption of radio waves.
E) Size is immaterial to quality observations.

Why Must Radio Telescopes Have Very Large Dishes