GATE IN · 2017 · IN
Question 53: Communication and Optical Instrumentation
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Question 53
INNAT2 marksNeeds review
Quantum efficiency of a photodiode (ratio between the number of liberated electrons and the number of incident photons) is 0.75 at 830 nm. Given Planck’s constant
, the charge of an electron
and the velocity of light in the photodiode
. For an incident optical power of 100 μW at 830 nm, the photocurrent in μA is ________.Log in to check the answer
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2017IN
GATE IN 2017 · Paper 1
Instrumentation Engineering · Original paper archive
- Section
- Instrumentation Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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