Suggested Answer
The power of the lens is 2 diopter means that this lens has a focal length of 1/2 meter.The focal length = 1 ÷ ( the number of diopters)If one's glass prescription shows that the power of the lens is 2 diopter it means that the person is far-sighted. It means if a person needs to see something which is quite distant then his eyes need extra lens power to focus on it. Moreover, if there's a sign convention it means '+' indicates a convex lens and '-' concave lens. Also in-camera close up lens are also measured in terms of diopter.I hope this answer helps.To learn more about lenses,https://brainly.com/question/766997https://brainly.com/question/17014859
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