[MCQs] Focal Length of Photo Theodolite is Around

Focal Length of Photo Theodolite is Around

[A] 10-20 cm
[B] 10-15 cm
[C] 15-20 cm
[D] 15-30 cm

The correct answer for Focal Length of Photo Theodolite is Around is 15-30 cm
Explanation: The focal length of photo-theodolite will be around 15-30 cm, which is obtained by placing the lens at a certain distance from the eyepiece. If at all the lens is placed at other than this distance, it may fail to produce a correct set of observations.