The resolving power of a refracting telescope increases with the diameter of the spherical objective lens. In reality, it is impractical to increase the diameter of the objective lens beyond approximately 1 m. Why? a. The resultant sagging of the mirror will cause spherical aberration. b. The resulting increase in light scattering from the surface of the objective lens will blur the image. c. If the objective lens is too large, it is difficult to keep it clean. Od. The increasing size of the objective lens will cause chromatic aberration to grow worse than spherical aberration. e. The spherical objective lens should be replaced by a paraboloidal objective lens beyond a 1-m diameter.

The resolving power of a refracting telescope increases with the diameter of the spherical objective lens. In reality, it is impractical to increase the diameter of the objective lens beyond approximately 1 m. Why? a. The resultant sagging of the mirror will cause spherical aberration. b. The resulting increase in light scattering from the surface of the objective lens will blur the image. c. If the objective lens is too large, it is difficult to keep it clean. Od. The increasing size of the objective lens will cause chromatic aberration to grow worse than spherical aberration. e. The spherical objective lens should be replaced by a paraboloidal objective lens beyond a 1-m diameter.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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