Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
Paper format. National Examinations, May 2015, 98-Phys-A7 Optics. Three hours, closed book, one approved Casio or Sharp calculator. Question 1 is mandatory; the rubric asks for Question 1 plus any four of Questions 2–6 (only the first four questions appearing in the answer book are marked) — all six are worked here, because the set is a study resource.
Reference texts. E. Hecht, Optics, 5th ed.; F. L. Pedrotti, L. M. Pedrotti and L. S. Pedrotti, Introduction to Optics, 3rd ed.
