An externally focused theodolite being setup. The observed horizontal distance from the center of the instrument up to the face of the rod is 30 m, spacing between the stadia hair at the eyepiece is 0.005 m, difference between the upper stadia hair and lower stadia hair is 1.75 m. a) Determine the focal length 0.1188 m None of the Choices 0.1485 m 0.0849 m 0.0743 m 0.1980 m 0.0990 m b) Determine the length from the center of the instrument to the objective lens 0.1020 m 0.2258 m

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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USE 3 DECIMAL PLACES IN EVERY SOLVED VALUES

An externally focused theodolite being setup. The observed horizontal distance from the
center of the instrument up to the face of the rod is 30 m, spacing between the stadia hair at
the eyepiece is 0.005 m, difference between the upper stadia hair and lower stadia hair is 1.75
m.
a) Determine the focal length
0.1188 m
None of the Choices
0.1485 m
0.0849 m
0.0743 m
0.1980 m
0.0990 m
b) Determine the length from the center of the instrument to the objective lens
0.1020 m
0.2258 m
0.2151 m
0.2010 m
0.1515 m
0.1812 m
None of the Choices
Transcribed Image Text:An externally focused theodolite being setup. The observed horizontal distance from the center of the instrument up to the face of the rod is 30 m, spacing between the stadia hair at the eyepiece is 0.005 m, difference between the upper stadia hair and lower stadia hair is 1.75 m. a) Determine the focal length 0.1188 m None of the Choices 0.1485 m 0.0849 m 0.0743 m 0.1980 m 0.0990 m b) Determine the length from the center of the instrument to the objective lens 0.1020 m 0.2258 m 0.2151 m 0.2010 m 0.1515 m 0.1812 m None of the Choices
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