Convex Lens Image Formation Quiz

Image Formation by Convex Lenses

• A convex lens forms a real and inverted image when the object is positioned far away.
• The image size decreases as the object moves further from the lens, nearing a point or minimum size when the object is at infinity.

Close Object Behavior

• When an object is very close to a convex lens, it produces a virtual and upright image.
• The magnification increases significantly when the object is near the lens, leading to a larger image relative to the object size.

Practical Applications

• Common items using a convex lens for image formation include:
  • Cameras
  • Magnifying glasses
  • Telescopes
  • Eyeglasses for correcting hyperopia (farsightedness)

Test your knowledge on image formation by convex lens when the object is far away and very close. Understand the formation of real, inverted, and varying size images for far objects, and virtual, erect, and magnified images for close objects.