Advantages and disadvantages of refracting telescopes aqa physics unit 5a 1.0 / 5 based on 1 rating ? PhysicsAstrophysicsA2/A-levelAll boards Created by: katherineCreated on: 17-05-12 21:53 disadvantages of refracting telescopes mounting and support of the lens can only be made using the edge of it it is hard to find glass free from impurities to make a large diameter they are extremely heavy and can collapse under their own weight if they have a large diameter suffer from chromatic AND spherical abberation hard to manoever difficult to mount heavy electronic and observing equipmet requires large objective lenses and focal length 1 of 2 advantages of reflecting telescope large mirrors can be made which are light and supported from behind can be made a few nm thick- excellent imaging only use front surface- remove many problems associated with lenses NO CHROMATIC ABBERATION and if parabolic NO SPHERICAL ABBERATION easily transportable smaller mirrors can be used to create a larger composite mirror 2 of 2
Further Physics - Observing the Universe - How Astronomers Work and Different Types of Telescope 5.0 / 5 based on 1 rating
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