Which telescope was invented by Isaac Newton in the 17th century by using a concave mirror to collect light instead of a simple lens which produces false colours due to the dispersion of light?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Reflecting telescope.
Isaac Newton invented the reflecting telescope in the 17th century.It employed a concave mirror to gather light, unlike lens-based telescopes. This innovation addressed chromatic aberration, the false colors caused by light dispersion in lenses. By using mirrors, Newton created a clearer, more accurate image, revolutionizing astronomical observation.
Infrared Telescope:Detects infrared radiation, allowing observation of objects that emit heat.
Monocular Telescope:A single-tube telescope, essentially half of a binocular.
Graphic telescope:It is not a standard or widely recognized term in the field of optics or astronomy. It is possible that the term has been misstated, or is a very specialized term.