[单选题]
A magnifying lens has a focal length of 10 cm. A person haabsbfqwr s 5b-bv1o(8): 8hm ds a near 8ghd*cg6t 7mp:)beueok3 .nx point of 25 cm. What is the magnification of the lens for that person when their eyes are focused at their 8 genpx)ht7g6:*cko d3 m.beu near point?
Post time 2024-1-26 22:03:25