What are two ways electromagnetic waves are used in a home computer scanner? A.
An image is produced when a silicon chip releases electrons by the photoelectric effect.

B.
Visible light is reflected off an object and then captured by a charge-coupled device.
C.
X-rays shine on objects, and the rays either pass through or are absorbed by the objects.
D.
Red light shines on a black-and-white object, and light is reflected according to the pattern of black and white.