Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

Options:

a

b

c

d

Correct Answer:

b

Explanation:

$\lambda_{max} = \frac{hc}{E} = \frac{12400 A^o}{0.85} = 1.5 \mu m$

$\lambda \text{ is less than }1.5 \mu m$.