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Optical telescope short note​

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Answer:

optical telescope is a telescope that gathers and focuses light, mainly from the visible part of the electromagnetic spectrum, to create a magnified image for DIRECT view, or to make a photograph, or to COLLECT data through electronic image sensors.

There are three primary types of optical telescope:

  1. refractors, which use lenses (dioptrics)
  2. reflectors, which use mirrors (catoptrics)
  3. catadioptric telescopes, which COMBINE lenses and mirrors

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