The 300-m-diameter Arecibo radio telescope detects radio waves with a 4.00 cm averagewavelength.(a) What is the angle between two just-resolvable pointsources for this telescope? (b) How close together could these point sources be at the 2million light year distance of the Andromeda galaxy?

The 300-m-diameter Arecibo radio telescope detects radio waves with a 4.00 cm averagewavelength.(a) What is the angle between two just-resolvable pointsources for this telescope? (b) How close together could these point sources be at the 2million light year distance of the Andromeda galaxy?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 98AP: A radio station broadcasts its radio waves with a power of 50,000 W. What would be the intensity of...

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Question

The 300-m-diameter Arecibo radio telescope detects radio waves with a 4.00 cm average
wavelength.
(a) What is the angle between two just-resolvable point
sources for this telescope? (b) How close together could these point sources be at the 2
million light year distance of the Andromeda galaxy?

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