Question

The angle of elevation and depression are usually measured by a device called
(a) Theodolite (b) kaleidoscope (c) Periscope (d) Telescope?which is correct?​

Answer 1

Step-by-step explanation:

option (a) is correct.i think

Answer 2

Answer:

(a) Theodolite

Step-by-step explanation:

• A theodolite is a perfect instrument for measuring angles in vertical and perpendicular aeroplanes.
• Theodolites are used substantially for surveying operations and have been acclimated for technical purposes in fields like metrology and rocket launch technology.
• An ultramodern theodolite consists of a portable telescope mounted within two vertical axes the vertical or trunnion axis, and the perpendicular axis. When the telescope is refocused on a target object, the angle of each of these axes can be measured with great precision.
• It is a precision optic instrument for measuring angles between designated visible points in the vertical and perpendicular aeroplanes.
• The traditional use has been for land surveying, but it's also used considerably for structure and structure construction, and some technical operations similar to meteorology and rocket launching.

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