American Board of Opticianry (ABO) Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the ABO exam with confidence. Our comprehensive resources, including quizzes and study materials, will help you master essential opticianry concepts and pass the American Board of Opticianry exam with ease. Get started today!

Practice this question and more.


What is a point of light pulsating in a straight line called?

  1. One meter

  2. Base

  3. Ray

  4. Apex

The correct answer is: Ray

A One meter is a unit of measurement and does not describe a type of light. B: Base typically refers to the bottom or support of something, not necessarily to light. D: Apex usually refers to the highest point of something, not necessarily to light.