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Prepare Ppt. on ...........

R1- Defining lens along with their types and describing ray diagram of concave lens.
R2 - Describing ray diagram of convex lens.
R3 - Defining magnification and power of lens and solving numerical related to them.
R4 - Defect of vision and correction measure.

Deadline of Submission : 17th July ( Wednesday) @8.00 p.m.
Mailing ID : harilama@bis.edu.np
( Note: Failure to submit on stipulated date and time will not be entertained for presentation.)

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[Note: Submit this work by 1st September 2019 by 9.45 am. Later than this, if submitted, it will not be counted in record.]