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What is the minimum diameter mirror on a telescope that would allow you to see details as small
as 4.95 km on the Moon some 384,000 km away? Assume an average wavelength of 565 nm for
the light received.
Solution
from the equation of telescope
(y/R) = 1.22L/D
y = minimum seperation between two points
R = distance between the moon and earth
L = wavelength
D = diameter of the mirror
(4.95/384000) = 1.22*(565*10^-9/D)
D = 0.053 m
D = 5.3 cm <<----------------answer
What is the minimum diameter mirror on a telescope that would allow yo.docx

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What is the minimum diameter mirror on a telescope that would allow yo.docx

  • 1. What is the minimum diameter mirror on a telescope that would allow you to see details as small as 4.95 km on the Moon some 384,000 km away? Assume an average wavelength of 565 nm for the light received. Solution from the equation of telescope (y/R) = 1.22L/D y = minimum seperation between two points R = distance between the moon and earth L = wavelength D = diameter of the mirror (4.95/384000) = 1.22*(565*10^-9/D) D = 0.053 m D = 5.3 cm <<----------------answer