Answer:
Fluorescent lamp and a CCD array as a light source and detector. Manufacturers of flatbed scanners recently replaced the fluorescent lamp by light emission diodes (LED) as a light source.
Explanation:
This is what a website said so I hope it helps but if it doesn’t then I’m sorry :/ and I would get someone else’s opinion!!!
(d ont use my pre vious answer g uys its wrong g ) (id k)
Timing In photography is important because you want to make sure you have enough time to take the perfect picture because you don’t want a good angle be ruined by a blurry shot