Reworked
di + do = 50cm or 500 mm
M= 40mm
So, 40mm= di/do
40di = do
do + 40 do= 500mm
41do= 500mm
500mm /41 do = do
do = 12.2mm 500-12.2=di di= 487.8
1/f= 1/487.8 + 1/12.2 1/f= 499/5844 5844/499= f
f= 11.7mm
I just might have it could...
Thank you very much. We only covered this in a coule of days(Microprocessors) and I don't have this in physics until next semester. I'll try again and repost!
Homework Statement
Needan optical sensor to detect a dot sequence on widgets passing 50cm away from the sensor. Want each dot to exactly cover the sensor. If the dots are 10mm in diameter and the sensor is 40mm in diameter, what is the position and focal length of the lens to do the...