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UPSC Civil Service Exam Questions - Engineering

Q1:

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

A 50 ; 0.40 m

B 50 ; 0.25 m

C 100 ; 0.40 m

D 30 ; 0.10 m

ANS:A - 50 ; 0.40 m

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