PHY142 Lab 7: Convex and Concave Lenses Virtual Lab Spring 2025

Lab 7: Convex and Concave Lenses Virtual Lab

Name:



The objective of the lab is to learn the properties of image formed by convex and concave lenses.



Online Lenses Experiment Setup Instructions.

1. Go to the following website: https://ophysics.com/l12.html

2. Figure 1 shows an example of what you should see on your screen.




Figure 1: Initial Configuration after opening the Concave and Convex Lenses Simulator

3. Click on the top of the Object arrow.

• Move the tip of the "Object" arrow Up or Down to adjust the object height,h0.
• Move the tip of the "Object" arrow Left or Right to adjust the object distance, do.
• Move the point named Focus’ to change the focal length
• Move the point named Focus’ to the right side of the lens to change to a concave lens.




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, Part I: Ray Tracing for Lenses




1. Is the diagram above a Concave (Diverging) or a Convex (Converging)
Lens? It’s a convex (converging) lens.
2. Based on the location of the object, is the Image Type: Real or
Virtual? The image type is real.
3. Is the Image Orientation: Upright or
Inverted? The image is inverted.




4. Is the diagram above a Concave (Diverging) or a Convex (Converging)
Lens? It is concave (diverging).
5. Based on the location of the object, is the Image Type: Real or
Virtual? It is virtual.
6. Is the Image Orientation: Upright or
Inverted? It is upright.




7. Is the diagram above a Concave (Diverging) or a Convex (Converging)
Lens? It is convex (converging).
8. Based on the location of the object, is the Image Type: Real or
Virtual? It is virtual.
9. Is the Image Orientation: Upright or
Inverted? It is upright.
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