For a convex lens, if the object is at infinity, the image will be formed at: (2

Practice Questions

Q1
For a convex lens, if the object is at infinity, the image will be formed at: (2020)
  1. At the focus
  2. At the center of curvature
  3. At infinity
  4. At the optical center

Questions & Step-by-Step Solutions

For a convex lens, if the object is at infinity, the image will be formed at: (2020)
  • Step 1: Understand what a convex lens is. A convex lens is thicker in the middle and thinner at the edges, and it bends light rays that pass through it.
  • Step 2: Know what it means for an object to be at infinity. When we say the object is at infinity, it means it is very far away from the lens.
  • Step 3: Remember how light rays behave when they come from a distant object. Light rays coming from an object at infinity are parallel to each other.
  • Step 4: Learn about the focus of the lens. The focus is a specific point where light rays converge after passing through the lens.
  • Step 5: When parallel light rays enter a convex lens, they are bent inward and converge at the focus of the lens.
  • Step 6: Conclude that if the object is at infinity, the image will be formed at the focus of the convex lens.
  • Lens Formula – Understanding how a convex lens focuses light and the relationship between object distance, image distance, and focal length.
  • Image Formation – Knowledge of how the position of the object affects the position of the image formed by a lens.
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