Define the following terms: Line of collimation, Level surface.

1.	Define the following terms: Line of collimation, Level surface.
Answer» Line of Collimation: Line joining the intersection of the cross-hairs to the optical center of the OBJECTIVE and its continuation. It is also know as Line of sight. Line of sight : is defined as the intersection of the cross hairs and the optical centre of the objective lens. Level SURFACE: A small exploration of the connection between the gradient VECTOR and level surfaces. For a function f, the gradient vector GRAD f has the PROPERTIES that. it points in the direction in which f increases the fastest, and. it is perpendicular to level curves or surfaces of f.

Answer»

Line of Collimation:

Line joining the intersection of the cross-hairs to the optical center of the OBJECTIVE and its continuation. It is also know as Line of sight. Line of sight : is defined as the intersection of the cross hairs and the optical centre of the objective lens.

Level SURFACE:

A small exploration of the connection between the gradient VECTOR and level surfaces. For a function f, the gradient vector GRAD f has the PROPERTIES that. it points in the direction in which f increases the fastest, and. it is perpendicular to level curves or surfaces of f.

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