MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following shows the laser transition in Neon in He-Ne laser? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10a.png"><img alt="The following shows the laser transition in Neon in He-Ne laser - option a" class="alignnone size-full wp-image-251786" height="300" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10a.png" width="257"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10b.png"><img alt="The following shows the laser transition in Neon in He-Ne laser - option b" class="alignnone size-full wp-image-251787" height="314" sizes="(max-width: 322px) 100vw, 322px" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10b.png 322w, https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10b-300x293.png 300w" width="322"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10c.png"><img alt="The following shows the laser transition in Neon in He-Ne laser - option c" class="alignnone size-full wp-image-251788" height="295" sizes="(max-width: 417px) 100vw, 417px" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10c.png 417w, https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10c-300x212.png 300w" width="417"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10d.png"><img alt="The following shows the laser transition in Neon in He-Ne laser - option d" class="alignnone size-full wp-image-251789" height="212" sizes="(max-width: 476px) 100vw, 476px" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10d.png 476w, https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10d-300x134.png 300w" width="476"/></a> |
| Answer» C. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10c.png"><img alt="The following shows the laser transition in Neon in He-Ne laser - option c" class="alignnone size-full wp-image-251788" height="295" sizes="(max-width: 417px) 100vw, 417px" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10c.png 417w, https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-helium-neon-laser-q10c-300x212.png 300w" width="417"/></a> | |
| 2. |
He-Ne laser is used in Holography. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
When the transition takes place from En6 -> En5, what is the wavelength of produced beam? |
| A. | 6328 |
| B. | 33913 |
| C. | 11523 |
| D. | 7550 |
| Answer» C. 11523 | |
| 4. |
The output of a He-Ne laser has pulse duration of 15 ms and average output power of 1 W per pulse. How much energy is released per pulse? |
| A. | 5 mJ |
| B. | 10 mJ |
| C. | 15 mJ |
| D. | 20 mJ |
| Answer» D. 20 mJ | |
| 5. |
The number of photons emitted for a 2.5 mW He-Ne laser is __________ |
| A. | 4.9 X 10<sup>15</sup> |
| B. | 5.9 X 10<sup>15</sup> |
| C. | 6.9 X 10<sup>15</sup> |
| D. | 7.9 X 10<sup>15</sup> |
| Answer» C. 6.9 X 10<sup>15</sup> | |
| 6. |
The He-Ne laser operates at a wavelength of ____________ |
| A. | 540 nm |
| B. | 632 nm |
| C. | 690 nm |
| D. | 717 nm |
| Answer» C. 690 nm | |
| 7. |
Which pumping method is used in He-Ne laser? |
| A. | Optical Pumping |
| B. | Electrical Excitation |
| C. | Chemical Pumping |
| D. | Direct Conversion |
| Answer» C. Chemical Pumping | |
| 8. |
He-Ne laser is a type of ____________ |
| A. | Solid laser |
| B. | Liquid laser |
| C. | Gas laser |
| D. | Diode laser |
| Answer» D. Diode laser | |
| 9. |
The difference between He-Ne Laser is __________ |
| A. | It gives pulsed output |
| B. | It gives a non-continuous laser beam |
| C. | It gives a continuous laser beam |
| D. | No difference |
| Answer» D. No difference | |