Which of the following wavelength regions cannot be studied with telescopes on the ground?
A) radio waves
B) ultraviolet
C) X rays
D) both B and C
E) both A and C
Answer: D
Which of the following wavelength regions cannot be studied with telescopes on the ground?
A) radio waves
B) ultraviolet
C) X rays
D) both B and C
E) both A and C
Answer: D