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In an external focussing tacheometer, the fixed interval between the stadia hairs is 5 mm; the focal length of the objective is 25 cm ; and the distance of the vertical axis of the instrument from the optical centre of the objective is 15 cm. The constants of the tacheometer are
🗓 Jul 13, 2021
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Jordan
🌐 India
can anyone share the explanation, please?
votes
Catherine
🌐 India
like it
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