Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • The energy band gap of semiconducting material to produce violet (wavelength ) LED is __________<img alt="\mathrm{eV}" src="/latex-image/

The energy band gap of semiconducting material to produce violet (wavelength =4000 \AA ) LED is __________\mathrm{eV}. (Round off to the nearest integer).

Option: 1

3


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)

best_answer

Energy of band gap \mathrm{=E(\mathrm{ev})=\frac{12400{\AA}}{\lambda(\AA)}}
                              \mathrm{=3.1 e \mathrm{~V}}
Energy of band gap \mathrm{\simeq 3 \mathrm{eV}}

Posted by

Irshad Anwar

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main Result 2025 LIVE: NTA JEE result by tomorrow at jeemain.nta.nic.in, scorecard, marks calculator
anam-khan

JEE Main final answer key 2025 delayed; aspirants heap abuse, anger upon NTA, demand another exam body
anam-khan

JEE Main results 2025 by April 19, final answer key at 2 pm: NTA confirms result date

Latest Question