Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

Options:

a

b

c

d

Correct Answer:

a

Explanation:

$\alpha = \frac{\beta}{1+\beta} = 0.995$

$ \beta = 0.995 + 0.995 \beta , \Rightarrow 0.005 \beta = 0.995$

$ \beta = \frac{0.995}{0.005} = 199$