Grade 12 : Physics - Semiconductors (Set 3) | Concept of Maths

Skip to main content

Loading...

Grade 12 : Physics - Semiconductors (Set 3) | Concept of Maths

Grade 12 : Physics - Semiconductors (Set 3)

Time Left

00:30:00

SECTIONS |

Physics

Question No. 1

Marks+1-0.25

Time 00:00

View in

An LED is constructed from a semiconductor material. When forward biased, it emits light of wavelength $\lambda = 620\text{ nm}$.

What is the band gap energy $E_g$ of this semiconductor material? (Take $hc = 1240\text{ eV}\cdot\text{nm}$)

1.2 eV

2.0 eV

2.8 eV

3.1 eV

0Answered

0Marked

19Not Visited

1Not Answered

✓Marked & Answered (0)

SECTION : Physics