Multiple choice

Consider the following statements regarding Photo - diodes: (a) Photodiode is a 4 lead semiconductor device that transforms light energy to electric current (b) Photodiodes have very linear light v/s current characteristics (c) Photodiodes are less sensitive than photo-resistor Which of the above statements are true?

  1. Only (a) and (c)

  2. Only (a) and (b)

  3. Only (b)

  4. Only (c)

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement (a) is wrong. Photodiode is a 2 lead semiconductor device that transforms light energy to electric current. Statement (b) is correct. Photodiodes have very linear light v/s current characteristics. Statement (c) is wrong. Photodiodes are more sensitive than photo-resistor.

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