| ⇦ | 
| ⇨ |
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: - A particle of mass m is projected with a velocity v making an angle of 45°
- On bombarding U²³⁵ by slow neutron, 200 MeV energy is released. If the power output
- Two identical capacitors each of capacitance 5 mF are charged potentials 2 kV and 1 kV
- Two nuclei are said to be mirror nuclei of
- Which series of hydrogen spectrum corresponds to ultraviolet region?
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle of mass m is projected with a velocity v making an angle of 45°
- On bombarding U²³⁵ by slow neutron, 200 MeV energy is released. If the power output
- Two identical capacitors each of capacitance 5 mF are charged potentials 2 kV and 1 kV
- Two nuclei are said to be mirror nuclei of
- Which series of hydrogen spectrum corresponds to ultraviolet region?
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