Documents Chapter 25 Optical Instruments 1. The eye 2. The magnifying glass.

Slide 1 Chapter 25 Optical Instruments 1. The eye 2. The magnifying glass Slide 2 The Eye - Parts Cornea Aqueous Humor – The pupil The crystalline lens The iris Slide 3…

Documents optics-10

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…