Question

How does a light pen work?

Answer 1

Answer:

Its a piracy pen which is use for such dramatical cheatings

Answer 2

Light pen is also known as ‘cheating pen’. It looks like a normal pen but has a blue colour light on the top, it acts as when we write something on a paper it is not seen but when we reflect to words by the blue light (given on the pen) the words can be seen till the light is been reflected.

HOPE IT HELPS!!