![OBJECTIVE MIRROR A Cassegrain telescope uses two mirrors as shown in figure. Such a telescope is built with the mirrors 20 mm apart. If the radius of curvature of the large mirror OBJECTIVE MIRROR A Cassegrain telescope uses two mirrors as shown in figure. Such a telescope is built with the mirrors 20 mm apart. If the radius of curvature of the large mirror](https://toppr-doubts-media.s3.amazonaws.com/images/9549287/1751be2a-9e77-47d6-bc5c-9a9d050326b1.jpg)
OBJECTIVE MIRROR A Cassegrain telescope uses two mirrors as shown in figure. Such a telescope is built with the mirrors 20 mm apart. If the radius of curvature of the large mirror
![Elements of natural philosophy (Volume 2-3) . heoptical centre of the small reflector being sensibly equalto the radius of curvature. This gives A it A! Its value (83). DTNAMETER. Dynameter § 86. Elements of natural philosophy (Volume 2-3) . heoptical centre of the small reflector being sensibly equalto the radius of curvature. This gives A it A! Its value (83). DTNAMETER. Dynameter § 86.](https://c8.alamy.com/comp/2AJ26B0/elements-of-natural-philosophy-volume-2-3-heoptical-centre-of-the-small-reflector-being-sensibly-equalto-the-radius-of-curvature-this-gives-a-it-a!-its-value-83-dtnameter-dynameter-86-if-any-telescope-properly-adjusted-to-view-dis-tant-objects-be-directed-towards-the-heavens-the-fieldlens-may-be-regarded-as-a-luminous-object-whose-im-distance-ofage-will-be-formed-by-the-eye-lens-the-distance-of-object-17-258-natural-philosophy-the-object-in-this-case-will-be-the-sum-of-the-princi-pal-focal-distances-or-fu-i-and-this-being-sub-stituted-for-in-equation-57-we-get-2AJ26B0.jpg)
Elements of natural philosophy (Volume 2-3) . heoptical centre of the small reflector being sensibly equalto the radius of curvature. This gives A it A! Its value (83). DTNAMETER. Dynameter § 86.
![A Cassegrain telescope uses two mirrors as shown in the above figure. Such a telescope is built with the mirrors $20mm$ apart. If the radius of curvature of the large mirror is A Cassegrain telescope uses two mirrors as shown in the above figure. Such a telescope is built with the mirrors $20mm$ apart. If the radius of curvature of the large mirror is](https://www.vedantu.com/question-sets/a18f4337-6600-4926-beeb-de7304fe92646666206574747753330.png)
A Cassegrain telescope uses two mirrors as shown in the above figure. Such a telescope is built with the mirrors $20mm$ apart. If the radius of curvature of the large mirror is
![A Cassegrain telescope uses two mirrors as shown in Fig. 9.26.Such a telescope is built with the mirrors 20mm apart.If the radius of curvature of the large mirror is 220mm and the A Cassegrain telescope uses two mirrors as shown in Fig. 9.26.Such a telescope is built with the mirrors 20mm apart.If the radius of curvature of the large mirror is 220mm and the](https://images.collegedunia.com/public/qa/images/content/2023_09_30/a_1f36c8bf1696062822353.png)