What are two ways electromagnetic waves are used in a home computer scanner?
A. Red light shines on a black and white object, and light is reflected
according to the pattern of black and white

B. Visible light is reflected off an object and then captured by a
charge coupled device

C. An image is produced when a silicon chip releases electrons by
the photoelectric effect

D. X-rays shine on objects and the rays either pass through or are
absorbed by the objects