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Name : Roll No. : Topic : Optics Mohammed Asif Ph : 9391326657, 64606657 Teaching Notes (Optic) • • The study of light and vision is called optics. Light is a form of…

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1. A lens has power of - 2.5 D. What is the focal length and nature of the lens ? 2. A doctor has prescribed a corrective lens of power + 1.5 D. Find the focal length of…