Question

What is the use of horse hair in prismatic compass?

Answer 1

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A prismatic compass is a navigation and surveying instrument which is extensively used to find out the bearing of the traversing and included angles between them, waypoints (an endpoint of the lcourse) and direction.

Answer 2

Horse hair is used to bisect the filed of the object.

Explanation:

• A compass is essentially made up of a magnetic needle, a graduated circle and a line of sight.
• A prismatic compass is a common instrument and is widely used for making surveys.
• It has a reflection prism, with a prism cap to protect it from the moisture.
• opposite to the prism, a box is present in which contains a horse hair in it and it is used to bisect the field of the object.