Question

Constant Table:

e₀ =8.85´10^-12C²×N^--1×m^-2 ; R=8.315J-mol^-1×K^-1; m₀= 4π´10^-7N×A^-2; h = 6.63´10^-34J×s;

e = 1.602´10^-19C; G=6.67´10^-11N×m²-kg^-2; m_e=9.11´10^-31kg; g=9.8 m/s²;

(2) When a light beam of wavelength 620 nm is incident on a photodiode of 50% quantum efficiency, the photocurrent generated is 2 μA. What is the incident optical power?

(A) 4 μW

(B) 3 μW

(C) 1 μW

(D) 2 μW

Answer 1

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