Optical Magnetic Reader(omr)

  • #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
 

Answers and Replies

  • #2
mgb_phys
Science Advisor
Homework Helper
7,774
13
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.
 

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