15_Ch 25 College Physics ProblemCH25 Optical Instruments

# 15_Ch 25 College Physics ProblemCH25 Optical Instruments -...

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Optical Instruments 351 (a) The angular magnification (or magnifying power) of the telescope is then 0.833 m 7.50 0.111 m o e f m f + = = = + (b) The length of the telescope is 0.833 m 0.111 m 0.944 m o e L f f = + = + = 25.29 (a) From the thin lens equation, pf q p f = , so the lateral magnification by the objective lens is ( ) M h h q p f p f = = − = − . Therefore, the image size will be f h f h h M h p f f p = = − = (b) If p f >> , then and f p p ≈− f h h p ′ ≈ − (c) Suppose the telescope observes the space station at the zenith.
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