[单选题]
A compound microscope isorwal)*5* m gyt/sc- v*msq o -tjh5,,xpbc9f designed to resolve objects which are 0.010 mm apart. u9sh ) p je9kl4u;6hf w0zan,r If the focal length of the objective is 4.0 cm and the wavelength of light used is 550 nm, what is the diameter of the l )6,4ae90h wnks;9 hfu przujobjective?
A. $0.27 \; mm$
B. $0.54 \; mm$
C. $2.7 \; mm$
D. $5.4 \; mm$
Post time 2024-1-26 22:03:25