Select Goal &
City
Select Goal
Explore
Question:
The principle of $LASER$ action involves
The principle of $LASER$ action involves
Updated On: Apr 7, 2024
- Stimulated emission
- Population inversion
- Amplification of particular frequency emitted by the system
- All of these
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Laser action involves all the given phenomenon
(i) Amplification of particular frequency
(ii) Population inversion
(iii) Stimulated emission
(i) Amplification of particular frequency
(ii) Population inversion
(iii) Stimulated emission
Was this answer helpful?
1
0
Top Questions on Semiconductor electronics: materials, devices and simple circuits
- Conductivity of a photodiode starts changing only if the wavelength of incident light is less than 660 nm. The band gap of the photodiode is found to be \[\frac{X}{8} \, \text{eV}.\]The value of $X$ is:\text{(Given, $h = 6.6 \times 10^{-34} \, \text{Js}$, $e = 1.6 \times 10^{-19} \, \text{C}$)}
- JEE Main - 2024
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- To measure the temperature coefficient of resistivity $\alpha$ of a semiconductor, an electrical arrangement shown in the figure is prepared. The arm BC is made up of the semiconductor. The experiment is being conducted at $25^\circ \text{C}$ and the resistance of the semiconductor arm is $3 \, \text{m}\Omega$. Arm BC is cooled at a constant rate of $2^\circ \text{C/s}$. If the galvanometer G shows no deflection after 10 s, then $\alpha$ is:
- JEE Main - 2024
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- The acceptor level of a p-type semiconductor is 6eV. The maximum wavelength of light which can create a hole would be : Given hc = 1242 eV nm.
- JEE Main - 2024
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- Which of the diode circuit shows correct biasing used for the measurement of dynamic resistance of p-n junction diode :
- JEE Main - 2024
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- A light emitting diode (LED) is fabricated using GaAs semiconducting material whose band gap is 1.42 eV. The wavelength of light emitted from the LED is:
- JEE Main - 2024
- Physics
- Semiconductor electronics: materials, devices and simple circuits
View More Questions
Questions Asked in KCET exam
- If \(\lim\limits_{x \rightarrow 0} \frac{\sin(2+x)-\sin(2-x)}{x}\)= A cos B, then the values of A and B respectively are
- KCET - 2023
- limits of trigonometric functions
- The Curie temperatures of Cobalt and iron are 1400K and 1000K respectively. At T = 1600K , the ratio of magnetic susceptibility of Cobalt to that of iron is
- KCET - 2023
- Magnetism and matter
- A particle is in uniform circular motion. Related to one complete revolution of the particle, which among the stataments is incorrect ?
- KCET - 2023
- Uniform Circular Motion
- The modulus of the complex number \(\frac{(1+i)^2(1+3i)}{(2-6i)(2-2i)}\) is
- KCET - 2023
- complex numbers
- In which one of the following pairs, both the elements does not have (n-1)d10ns2 configuration in its elementary state?
- KCET - 2023
- subshell electronic configuration
View More Questions
Concepts Used:
Semiconductors
Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.
Properties of Semiconductor:
- Semiconductor acts like an insulator at Zero Kelvin. On increasing the temperature, it works as a conductor.
- Due to their exceptional electrical properties, semiconductors can be modified by doping to make semiconductor devices suitable for energy conversion, switches, and amplifiers.
- Lesser power losses.
Uses of Semiconductor:
- Semiconductors are widely used in manufacturing electronics devices like transistors, diodes, sensors, integrated circuits.
- Semiconductors are widely used in all electronic devices, like mobile phones, digital cameras, communication devices, trains, ATMs, etc.
SUBSCRIBE TO OUR NEWS LETTER
COLLEGE NOTIFICATIONSEXAM NOTIFICATIONSNEWS UPDATES
Download the Collegedunia app on 
© 2024 Collegedunia Web Pvt. Ltd. All Rights Reserved