Question

What is photodiode? Mention its one use.

Answer 1

Photodiode:

1. A photodiode is a type of semiconductor that converts light into current.
2. When photons are absorbed in the photodiode, the current is generated.
3. When there is no light, a small amount of current is produced.

Photodiodes are used in the following applications:
1. Photographers
2. Medical equipment
3. Security measures
4. Devices for optical communication
5. Position detectors