American Board of Opticianry (ABO) Practice Test

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Prepare for the ABO (American Board of Opticianry) Test with interactive flashcards and hundreds of multiple choice questions. Updated for 2024 to help you excel on exam day

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What characterizes minus lenses?

the speed of light in air divided by the speed of light in the material
minus spheres are used for farsightedness
can be characterized by diverging/with motion
plus lenses can be characterized by converging/against motion

The correct answer is: can be characterized by diverging/with motion

Minus lenses are characterized by their ability to diverge light. This is in contrast to plus lenses (option D) which can converge light. Option A and B do not accurately describe the characteristics of minus lenses and thus are incorrect.