Multiple choice general knowledge science & technology

What is the name of the point where light rays from infinity coverge after passing through a lens?

  1. Center

  2. Infinity

  3. Parabola

  4. Focus
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The focus is the point where parallel light rays (from infinity) converge after passing through a lens. This is a fundamental principle in geometric optics. The center is the middle of the lens, infinity is a theoretical distance, and parabola is a type of curve.

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