Physics, 26.03.2021 04:10, portedon8644

Select the reasons why most professional telescopes are reflectors rather than refractors. A mirror can collect light more efficiently than a lens. Only the front surface of a mirror has to have a precise shape. Lenses are not subject to chromatic aberration. A lens has to be supported only around its edges. Reflecting telescopes have shorter focal lengths than refracting telescopes. It is easier to make a large reflecting telescope than a large refracting telescope.

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Select the reasons why most professional telescopes are reflectors rather than refractors. A mirror...