Question

-device converts varying light amplitudes into corresponding electrical signal.

a) LED

b) CCD

e) LCD

d) photodiod
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Answer 1

Answer:

cc'd is the right answer

Explanation:

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Answer 2

CCD device converts varying light amplitudes into a corresponding electrical signal.

• The term CCD stands for a Charge Coupled Device.
• For usage in digital photography, it ideally converts light into electrical impulses.
• It is a metallic oxide semiconductor chip sensor that transports electrically charged signals. It typically comprises a grid of cells that record an image of light using the photoelectric effect.
• The charge packets are transmitted first, before being turned to an electrical signal, by coupling and decoupling potential wells inside the semiconductor that makes up the sensor, instead of travelling from cell to cell by such mechanisms.
• Its sensor's surface is covered in photodiodes, each of which detects light and builds up an electrical charge depending on the intensity of the light that strikes it.

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