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Each file contains past 1st Examination Exam Solutions in the 5 topics listed below for January 2021 and August 2020. Note: Photonics solutions will be posted after June 2021.

Exams are in Adobe Acrobat, PDF format. You will need to have Adobe Acrobat Reader installed on your computer in order to view them. If your computer does not have Adobe Acrobat Reader installed, you can download it for free from