Question

Chapter 26, Problem 069 A converging lens (f = 11.6 cm) is located 34.2 cm to the left of a diverging lens (f -4.68 cm). A postage stamp is placed 28.6 cm to the left of the converging lens. (a) Locate the final image of the stamp relative to the diverging lens. (b) Find the overall magnification (a) Number Units (b) Number Units Click if you would like to Show Work for this question: Open Show Work

Answer 1

Using lens formula,

1/f = 1/v + 1/u

1/v = 1/11.6 - 1/28.6

v = 19.52 cm

For lens 2,

1/v = 1/-4.68 - 1/(34.2 - 19.52)

v = - 3.55 cm

B)

Magnification, m = - (19.52/28.6) (3.55/(34.2 - 19.52)) = - 0.16

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