[单选题]
A compound microscope i4iy35vb ga q4 m9dm+his5fxz 4d/sqiu 2 designed to resolve objects which are 0.010 mm apart. If the focal length of the objective is 4.0 cm and the wavelength of light uqz s4fd x/u5i2sed is 550 nm, what is the diameter of the objective?
A. $0.27 \; mm$
B. $0.54 \; mm$
C. $2.7 \; mm$
D. $5.4 \; mm$
Post time 2024-1-26 22:03:25