What is the theoretical resolution of a radio telescope with a 10-m-diameter collecting dish for radio waves with a wavelength of 21 cm? (See Exercise 74.)
Reference of exercise 74
The minimum angular separation in arc seconds is found by first finding the ratio of the wavelength of light to the diameter of the aperture and then multiplying by 2.5× 105. Using visible light with a wavelength of 550 nm, calculate the minimum angular separation for an eye with a pupil size of 5 mm.
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