| ⇦ | 
| ⇨ |
An LED is constructed from a p-n junction based on a certain semi-conducting material whose energy gap is 1.9 eV. Then, the wavelength of the emitted light is
Options
(a) 6.5×10⁻⁷ m
(b) 2.9×10⁻⁹ m
(c) 9.1×10⁻⁵ m
(d) 1.6×10⁻⁸ m
Correct Answer:
6.5×10⁻⁷ m
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - When the wave of hydrogen atom comes from infinity into the first orbit,
- The magnetic susceptibility is negative for
- The tension in a piano wire is 10 N. What should be the tension in the wire to produce
- A radioactive substance decays to 1/16th of its initial activity in 40 days.
- Two racing cars of masses m₁ and m₂ are moving in circles of radii
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When the wave of hydrogen atom comes from infinity into the first orbit,
- The magnetic susceptibility is negative for
- The tension in a piano wire is 10 N. What should be the tension in the wire to produce
- A radioactive substance decays to 1/16th of its initial activity in 40 days.
- Two racing cars of masses m₁ and m₂ are moving in circles of radii
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply