Assignment open Assignment RESOURCES Chapter 34, Problem 041 A lens is made of a

Question

Assignment open Assignment RESOURCES Chapter 34, Problem 041 A lens is made of a transparent material having an index of refraction of 1.4. One side of the lens is flat, and Cheater the other convex with a radius of curvature of 21 cm. (a) Find the focal length of the lens. (b) If an object is chaate placed 110 cm in front of the lens, where will the image be located? Number units (a) (b) Number units Click if you wouldlike to Show Work for this question Question Attempts: 0 of Sused 2000-2017 by John Waey & Sons, Inc. or related companies. All rights reserved. Review Results by Study

Explanation / Answer

1 / f = (n - 1) / r
f = r / (n - 1)

f = 21/0.4 = 52.5 cm

b) 1/f = 1/u+1/v

1/v = 1/f-1/u

v = uf/u-f

v = 110*52.5/57.5 = 100.43 cm

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