# Astronomers often take photographs with the objec-tive lens or mirror of a telescope alone, without an eyepiece.(a) Show that the image size h' for a telescope used in thismanner is given by h' fh/(f- p), where h is the object size,f is the objective focal length, and p is the object distance.(b) Simplify the expression in part (a) if the object distance ismuch greater than the objective focal length. (c) The "wing-span" of the International Space Station is 108.6 m, the overallwidth of its solar panel configuration. When it is orbiting at analtitude of 407 km, find the width of the image formed by atelescope objective of focal length 4.00 m.

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Step 1

Formula to calculate objective focal length is,

Step 2

Formula to calculate magnification factor is

Step 3

b). The expression of image height...

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