PERIOD THIN LENS PROBLEMS Use the thin lens equation to solve the following prob

Question

PERIOD THIN LENS PROBLEMS Use the thin lens equation to solve the following problems showing ALL of your work. Pro math work are worth 3 points (correct answers worth 1 point; correct work answers worth 1 point. Ray diagrams are required for p (each correct ray diagram worth 5 points). blems involving worth 2 points); single work roblems asking for the location of the image 1) An object is placed 20 cm in front of a convex le ns with a focal length of 5 cm a) what is the image location? (o(ob C b) what is the magnification of the ima c) is the image real or virtual? V d) is the image upright or inverted? age 2) The image produced by a converging lens is located at 8 cm when the object is placed 24 cm in front of the lens m

Explanation / Answer

using lens formula

1/f = 1/di + 1/do

1/di = 1/5 - 1/20

di = 6.67 cm

magnification = - di/do

m = - (6.67/20) = - 0.33

if we get distance of image (di) is negative so image is virtual but here image is real.

here magnification is negative so image is inverted.

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