An object is placed at the focus of a concave lens. What type of image is formed
Practice Questions
Q1
An object is placed at the focus of a concave lens. What type of image is formed?
Real and inverted
Virtual and erect
Real and erect
Virtual and inverted
Questions & Step-by-Step Solutions
An object is placed at the focus of a concave lens. What type of image is formed?
Step 1: Understand what a concave lens is. A concave lens is thinner in the middle and thicker at the edges.
Step 2: Know that a concave lens always diverges light rays that pass through it.
Step 3: Remember that the focus of a concave lens is a point where light rays appear to come from after passing through the lens.
Step 4: When an object is placed at the focus of a concave lens, the light rays diverge.
Step 5: Since the light rays diverge, they do not actually meet, but they appear to come from a point behind the lens.
Step 6: This means the image formed is virtual, meaning it cannot be projected on a screen.
Step 7: The image is also erect, which means it is upright and not inverted.
Image Formation by Lenses – Understanding how concave lenses create images, specifically that they always produce virtual, erect images regardless of the object's position.