a. Eye Surgery
b. Dvd Player
c. Bar Code Reader
d. Flourescent Light
2007-08-10 10:28:46 · 9 answers · asked by chato r 1 in Science & Mathematics ➔ Physics
A and D. Eye surgery (depending on what you have done) doesn't require a laser, but when working on the lens, it's a lot more precise.
A flourescent light doesn't have a laser in it, nor does it need one to operate. It uses electricity passing through a gas in the tube to make light.
2007-08-10 10:40:55 · answer #1 · answered by Flash1957 3 · 1⤊ 0⤋
Eye surgery and flourescent lights do not need lasers. Only some eye surgery is done with lasers.
2007-08-10 19:45:21 · answer #2 · answered by Charles C 7 · 0⤊ 0⤋
D floursecent light
laser reads the DVD
laser "cuts" the eye
and laser reads the barcodes
2007-08-10 17:36:44 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Fluorescent Light, unless they are doing something funny with florescent lights now that I am not aware of.
.
2007-08-10 18:20:49 · answer #4 · answered by canx_mp058 4 · 0⤊ 0⤋
A and D
2007-08-10 19:11:32 · answer #5 · answered by farwallronny 6 · 1⤊ 0⤋
d
2007-08-14 15:50:52 · answer #6 · answered by freakdamon 2 · 0⤊ 0⤋
d
2007-08-10 17:42:12 · answer #7 · answered by Hadassah 2 · 0⤊ 0⤋
eye surgery.
2007-08-10 17:34:40 · answer #8 · answered by ice cream lover 2 · 0⤊ 1⤋
d.
2007-08-14 11:01:42 · answer #9 · answered by johnandeileen2000 7 · 0⤊ 0⤋