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In a ray diagram for a concave lens, the rays parallel to the principal axis app
Practice Questions
Q1
In a ray diagram for a concave lens, the rays parallel to the principal axis appear to diverge from which point? (2021)
Focal point
Center of curvature
Optical center
Principal focus
Questions & Step-by-Step Solutions
In a ray diagram for a concave lens, the rays parallel to the principal axis appear to diverge from which point? (2021)
Steps
Concepts
Step 1: Understand what a concave lens is. A concave lens is thinner in the middle and thicker at the edges.
Step 2: Identify the principal axis. This is an imaginary line that runs horizontally through the center of the lens.
Step 3: Recognize that rays of light that are parallel to the principal axis will hit the lens.
Step 4: Know that when these parallel rays pass through a concave lens, they bend outward (diverge).
Step 5: Find the focal point. The focal point for a concave lens is located on the same side as the incoming light, but it is virtual.
Step 6: Conclude that the diverging rays appear to come from the focal point.
No concepts available.
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