What is their combined focal length

Reference no: EM13307078

(a) Two lenses having focal lengths of f1=15 cm and f2=9 cm are separated by a distance of 50cm. If an object is placed 25 cm from the first lens, find the positions of the intermediate and final images. What is the magnification of the final image

(b) If the lenses are moved into contact, what is their combined focal length?

Reference no: EM13307078

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