[填空题]
A sharp image is located d yr+cjilw*e,m fi*).vbqf 5 378.0 mm behi3t ;0/xk) nes.uhpib cwoi9 c*f /w sti4j6r8hnd a 65.0-mm-focal-length converging lens. Find the objeckstoitj pi bxwshc9/hr;38 n)w.fe4i 0*c/6ut distance
(a) using a ray diagram, mm
(b) by calculation. cm
