Franny drew a diagram to compare images produced by concave and convex lenses.
2 overlapping circles, the left circle labeled Concave lenses and the right circle labeled Convex lenses. An X in the overlap.
Which belongs in the area marked X?
Real
Virtual
Larger than object
Upside down
The correct answer is "Virtual" and "Upside down".
there can only be one answer
Apologies for the confusion. In this case, the correct answer is "Virtual".
The correct answer is "Virtual." When light rays pass through a concave lens, they diverge and never actually meet. As a result, the image formed by a concave lens is always virtual, meaning it cannot be projected onto a screen. On the other hand, when light rays pass through a convex lens, they converge and meet at a point. This creates a real image that can be projected onto a screen.
To determine which characteristic belongs in the area marked X on the diagram comparing concave and convex lenses, we need to understand the properties of each lens type.
1. Concave lenses: A concave lens is thinner at the center and thicker at the edges, causing light rays passing through it to diverge. These lenses generally have a curved inward (inward facing) surface.
2. Convex lenses: A convex lens is thicker at the center and thinner at the edges, causing light rays passing through it to converge. These lenses have a curved outward (outward facing) surface.
Now, let's analyze the given options:
- Real: Real images are formed when light rays physically converge to form an image. They can be seen on screens or captured on a surface.
- Virtual: Virtual images are formed when light rays appear to converge but do not physically meet. These images cannot be seen on a screen or captured on a surface.
- Larger than object: This property refers to the size of the image formed by the lens. If the image is larger than the object, it means it is magnified.
- Upside down: When an image is formed by a lens, it may be oriented in different ways. If the image appears flipped or inverted compared to the object, it is considered upside down.
Based on our understanding, the area marked X on the diagram represents the characteristics that are common to both concave and convex lenses. From the given options, the only common property is "Real" images. Both concave and convex lenses can produce real images, while the other options are specific to either concave or convex lenses.
Therefore, the correct answer is "Real."