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Semiconductor Electronics: Materials, Devices and Simple Circuits

Electrical conductivity of a semiconductor

LED is constructed from Ga-As-P semiconducting material. The e

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LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is $1.9 eV .$ Calculate the wavelength of light emitted and its colour. $[h = 6.63 \times 1 0^{- 34} Js$ and $c = 3 \times 1 0^{8} ms^{- 1}]$

Name: Video solution 1: LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is 1.9eV. Calculate the wavelength of light emitted and its colour. [h=6.63×10−34Js and c=3×108 ms−1]
Uploaded: 2022-06-11T08:45:49.000Z
Duration: 24 min
Description: Video solution 1: LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is 1.9eV. Calculate the wavelength of light emitted and its colour. [h=6.63×10−34Js and c=3×108 ms−1]

654 nm

and red colour

1046 nm

and blue colour

1046 nm

and red colour

654 nm

and orange colour

Views: 6,183 students

Updated on: Dec 28, 2022

Exam:

JEE Mains 2021 Feb 26 Shift 1

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Samuel Discussed

LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is

1.9 eV .

Calculate the wavelength of light emitted and its colour.

[h = 6.63 \times 1 0^{- 34} Js

and

c = 3 \times 1 0^{8} ms^{- 1}]

15 mins ago

Discuss this question LIVE

15 mins ago

Text solutionVerified

Δ E_{g} = 1.9 eV ∴ λ = \frac{1242}{1.9} nm = 654 nm of red colour

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Question Text	LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is $1.9 eV .$ Calculate the wavelength of light emitted and its colour. $[h = 6.63 \times 1 0^{- 34} Js$ and $c = 3 \times 1 0^{8} ms^{- 1}]$
Updated On	Dec 28, 2022
Topic	Semiconductor Electronics: Materials, Devices and Simple Circuits
Subject	Physics
Class	Class 12
Answer Type	Text solution:1 Video solution: 2
Upvotes	157
Avg. Video Duration	13 min

LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is $1.9 eV .$ Calculate the wavelength of light emitted and its colour. $[h = 6.63 \times 1 0^{- 34} Js$ and $c = 3 \times 1 0^{8} ms^{- 1}]$

Text solutionVerified

Filo tutor solutions (2)

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LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is 1.9eV. Calculate the wavelength of light emitted and its colour. [h=6.63×10−34Js and c=3×108 ms−1]

Text solutionVerified

Filo tutor solutions (2)

Questions from JEE Mains 2021 - PYQs

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LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is $1.9 eV .$ Calculate the wavelength of light emitted and its colour. $[h = 6.63 \times 1 0^{- 34} Js$ and $c = 3 \times 1 0^{8} ms^{- 1}]$