CBSE Class 12-science Answered
What is a cassegrain telescope?
Asked by pksunilnair | 04 Dec, 2017, 09:46: AM
Expert Answer
The Cassegrain telescope is an astronomical reflecting telescope, in which the light is incident on a large concave paraboloid mirror, and reflected onto a smaller convex hyperboloid mirror. This reflected light is reflected again through a hole in the concave mirror to finally form the image.
The classic Cassegrain telescope consists of a parabolic reflector (primary mirror) and a hyperbolic mirror (secondary mirror). The parabolic shape of the mirror helps in gathering light, similar to the way that a refractor gathers light using an objective lens. The hyperbolic secondary mirror reflects light, such that it is focussed onto the hole in the primary mirror. The eyepiece and the other instruments are located behind the telescope. The folded optical path in this telescope makes it compact and portable.
Given below are some of the main applications of Cassegrain telescopes:
- In astronomical observatories
- Photographic observations
Answered by | 04 Dec, 2017, 12:32: PM
Concept Videos
CBSE 12-science - Physics
Asked by tannudahiya80536 | 20 Dec, 2022, 01:13: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by kamleshstarone392 | 16 Apr, 2022, 06:26: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by shijurlytepz | 12 Oct, 2021, 06:56: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by khanhill543 | 31 Dec, 2020, 12:20: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by ABHILASHA | 15 Sep, 2020, 06:23: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by akgujrati04 | 22 Aug, 2020, 07:06: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by mazhartahsildar143 | 02 May, 2020, 01:32: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by govtsecschoolnayaganv051 | 24 Feb, 2020, 04:17: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by phenomenal1ajisback | 20 Feb, 2020, 08:08: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by singhalakash8958 | 03 Mar, 2019, 10:11: PM
ANSWERED BY EXPERT