[单选题]
A magnifying lens has7fb0o jtc;h v hr6c0*qteiwkl0 ./zge1g ef/a80dw+m a focal length of 10 cm. A person has a near point of 25 cm. Whatg ed0/zk+ .mw8etea/ fi10lwg is the magnification of the lens for that person when their eyes are focused at infinity?
Post time 2024-1-26 22:03:25