Question

one application of 2d scanner​

Answer 1

Answer:

Scanners use light to make digital copies of real world objects. 2D scanners are usually used to make digital copies of documents or pictures, but can also be used to create a 2D image of other objects as well

Answer 2

here Is your answer

2D scanners are usually used to make digital copies of documents or pictures, but can also be used to create a 2D image of other objects as well. In a flat bed scanner the document is placed on a glass plate.

A light is then shone on the piece of paper and a light sensor used to detect the light which is bounced back.

hope it helps you.