Telescope
Telescope: Overview
This topic covers concepts such as refraction of light, refracting telescope, difficulties in use of telescope, Newtonian telescope, and Cassegrain telescope.
Important Questions on Telescope
Intensity of light rays reaching the Earth's surface decreases as some of the light is absorbed by the atmosphere.
Where is the focus for a Cassegrain telescope?
What is Cassegrain telescope? And what is the unique thing about it?
What is the reflecting telescope used for?
What is the main drawback of earth based optical telescope?
What difficulties are faced while using telescope?
In , ISRO launched an artificial satellite called Astrosat, in space. This satellite has ultraviolet and X-ray telescopes and detectors.
In , ISRO launched an artificial satellite called _____, in space. This satellite has ultraviolet and X-ray telescopes and detectors.
In the year _____, the National Aeronautics and Space Administration launched into space an optical telescope called the Hubble telescope.
In a telescope, the light rays after reflection from the concave mirror are reflected back towards it by a small convex mirror. What type of telescope is this?
A telescope is made up of a concave and plane mirror. Before the reflected rays converge at the focus of the concave mirror, it is again reflected by the plane mirror. What type of telescope is this?
What type of telescope is shown in the figure?
To overcome ground- based optical telescope problems, telescopes are now being erected in space itself.
The biggest optical telescope in India is situated at _____ Research Institute of Experimental Sciences.
National Aeronautics and Space Administration has launched an _____ telescope which is named after famous Indian scientist.
National Aeronautics and Space Administration has launched an X-ray telescope. It is named after famous Indian scientist _____.
