Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Optical Magnetic Reader(omr)

  1. May 8, 2008 #1
    Dear Friends, i had an exam today where i had to mark the answers on OMR answer sheets.
    But unfortunately in some answers i marked a bit out of the circle, will it lead to rejection
  2. jcsd
  3. May 8, 2008 #2


    User Avatar
    Science Advisor
    Homework Helper

    It's actually optical 'mark' reader.
    No, generally it is a single photodiode that measures each circle, it doesn't look outside the circle and doesn't take a picture. As long as you blocked enough of the circle to reduce the light, it will mark it.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Optical Magnetic Reader Date
Competing fiber optic corps Sep 3, 2017
Optical Computing questions Feb 15, 2015
Optical drive SSD conversion Mac Nov 4, 2014
Optical diagrams, what program? Jul 7, 2012
Potential magnet damage to laptop HDD May 4, 2011