Add Chart Element Chart La RENE Chart 2 1 Conce 20 Rea If PHY X MasteringPhysics

Question

Add Chart Element Chart La RENE Chart 2 1 Conce 20 Rea If PHY X MasteringPhysics: Homework 10- Google Chrome https:// session. masteringphysics.com /myct/itemView ?assignment ProblemID 59361518 PHY 122 PHY122 Physics for the Life Sciences ll Spring 2016 Problem 18.64 k 10 Part A Problem 18.64 Use ray tracing to determine the location of the image. A near-sighted person might correct his vision by Express your answer using two significant figures. wearing diverging lenses with focal length f -40 cm. When wearing his glasses, he looks not at actual objects but at the virtual images of those I objects formed by his glasses. Suppose he looks at a 10 cm -long pencil held vertically 1.8 m from his glasses. 18 Submit My Answers Give Up incorrect; Try Again; 6 attempts remaining Part B Use ray tracing to determine the height of the image. Express your answer using two significant figures. 03 Submit My Answers Give Up Incorrect; Try Again: 7 attempts remaining I'm Cortana. Ask me anything cm. Mark Szkl Signed in as Mark Szkolnicki l Help Close Resources v previous l 27 of 27 l return to assignment 100% 8:21 PM 4/12/2016

Explanation / Answer

1/u +1/v = 1/f

1/v = 1/f-1/u

1/v = 1/(-40)- 1/180

v = 32.72 cm, IMAGE DISTANCE

b)

magnification = hf/hi = v/u

hf = v/u*hi = 32.72/180 *10 = 1.81 cm

Height of image = 1.81 cm

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