Multiple choice

The point where the parallel rays of light converge or diverge after passing through the lens is called the _______________.

  1. focus

  2. center of curvature

  3. pole

  4. focal length

  5. radius of curvature

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A Correct answer
Explanation

Yes, point at which parallel rays of light converge in a concave lens and parallel rays of light diverge from the point is called focus or principal focus of the lens.