Question: 34 Multiple Choice 2 points Why are most large telescopes reflectors, not refractors? O Large lenses deform under their own weight, but mirrors can be

34 Multiple Choice 2 points Why are most large telescopes reflectors, not refractors? O Large lenses deform under their own weight, but mirrors can be supported. Reflectors do not suffer from chromatic aberration like refractors do. Large, very clear lenses are harder to cast than more tolerant mirror blanks. Large mirrors need only one optical surface, achromats four surfaces to grind. All of the above are correct. Previous

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