grating experiment

Diffraction Grating Experiment Quiz

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To determine the He-Ne gas LASER wavelength we use grating element. Which have 15000 lines per inch or it may very from laboratory to the laboratory.

Diffraction Grating Experiment Quiz, it will help you to make your concept more clear about the experiment. Experiment means not taking the reading and calculations or complete the practical file it means understanding of the concepts used in that experiment.

Attempt the quiz and check what you had missed to learn from this experiment.

Diffraction Grating Experiment: In this experiment we find the wavelength of the LASER light

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1. What is the condition for constructive interference?

 
 
 
 

2. How to find the grating element of a given diffraction grating having 1500 Lines Per Inch (LPI)?

 
 
 
 

3. What are the Laser light characteristics ?

 
 
 
 

4. What is population Inversion?

 
 
 
 

5. What is spontaneous and stimulated emission process?

 
 
 
 

6. Why do you use n lembda= d sin theta formula? What is the origin to derive this formula for this experiment?

 

 
 
 
 

7. What is diffraction grating?

 
 
 
 

8. What is the standard value of Red Color wavelength in He-Ne gas LASER?

 

 
 
 
 

9. What is full form of the LASER?

 
 
 
 

10. What is grating Element?

 
 
 
 

11. Step to calculate the percentage error:

  1. Determine the difference between the observed value and the standard value
  2. divided by the standard value
  3. now multiply by the 100 to change in percentage
  4. use label of % in result.
 
 

12. Does diffracted Waves can interfere?

 
 
 
 

13. What is Interference?

 
 
 
 

Question 1 of 13

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Dr Sushil Kumar
Dr. Sushil Kumar, a physicist, an eminent researcher and a teacher for the benefit of students and fellow physicists alike. Apni Physics is an effort to create a better platform and also to help the students to be able to have content at their hands whenever they want, online. Dr. Sushil continues to upload his lectures and post articles about latest researches in physics, academic, physics education, and also lessons about daily life and how physics define every aspect of our everyday movement and life.

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