Question

The angle of vision for a healthy human being is about:

• A. \( 90^\circ \)
• B. \( 180^\circ \)
• C. \( 120^\circ \)
• D. \( 60^\circ \)

Hint:

The angle of vision corresponds to the field of view, and for most humans, it's about \(60^\circ\). This is the total angle where both eyes can focus on objects.

Answer 1

The Correct Option is D

Step 1: Defining angle of vision.
The angle of vision refers to the angular field of view that can be seen by both eyes without moving the head. It indicates the total horizontal range of vision. Step 2: Angle of vision in humans.
For a normal human, the angle of vision for both eyes is typically around \(60^\circ\). This is the field within which both eyes can focus on objects without turning the head. Step 3: Understanding the field of view.
This \(60^\circ\) angle is approximately the central field of view, where sharpest vision occurs, and it represents the full horizontal field of view for both eyes.