Exam-style question
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What is the role of a photodiode in a light-sensing application?.
- A.To detect and measure light intensity
- B.To store light energy for later use
- C.To convert electrical signals into light
- D.To amplify light signals for transmission
Model answer
What a good answer should say
- To detect and measure light intensity
Explanation
Why this works
In light-sensing applications, a photodiode detects light intensity and converts it into an electrical signal, which can then be measured and processed.
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