Physics, 22.07.2020 01:01 kharmaculpepper
A small Keplerian telescope has an objective with a 1.33 m focal length. Its eyepiece is a 2.82 cm focal length lens. It is used to look at a 25000 km diameter sunspot on the sun, a distance 1.5*108 km from Earth.
Required:
What angle is subtended by the sunspot's telescopic image in degree?
Answers: 2
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