16 Dec 2018

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# apni Physics

apni Physics developing physical concepts among students through experiments and simulations. Mainly, focused on these two activities by that students get concept faster. More than 20 experiments are included here for university graduate (B.Sc. Physics, Engineering Physics) students. It doesn’t mean higher or small classes has been ignored. For them, I have tried to use simulations whereas it could be possible at my end. These experiments include basic physical principles, demonstrations along with the viva questions. These questions help to give a new insight and direction of thinking to the students. Recently I have added quizzes for the practices for these experiments and related topics.

I have prepared the physics video lectures along with text materials. One can find the relevant topic through a menu or by searching into the search box. For any problem or mistake, you can email or message me directly. I will try to solve your problem as soon as it will be possible. In addition to the physics video lectures, some other informative tutorials are recorded. Like self-help videos that provide the solution to the students of their day to day life’s problem in a classroom and outside the academic buildings.

## Practice This Experiment Quiz

Viva Questions Determine the wavelength of the laser light by diffraction grating and demonstration.

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

2. What is Interference?

3. What is grating Element?

4. What is full form of the LASER?

5. What is the formula for to find the percentage error?

Observed value=A

Standard value=B

1. $Error&space;=&space;\frac{A-B}{B}\times&space;100$
2. $Error&space;=&space;\frac{A-B}{A}\times&space;100$
3. $Error&space;=&space;\frac{A-B}{2B}\times&space;100$
4. $Error&space;=&space;\frac{2A-B}{B}\times&space;100$

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

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

8. What is spontaneous and stimulated emission process?

9. What is diffraction grating?

10. What is the condition for constructive interference?

11. What is diffraction?

12. Does diffracted Waves can interfere?

13. What are the Laser light characteristics ?

14. What is population Inversion?

## Teaching with Technology

Learn latest teaching technology, online lecture preparation, teaching tools and use of website, blog, and youtube in teaching.

## Research Keywords

Keywords play the important role in scientific research. For wide circulation and more citations use effective keywords. Learn more here or ask me.

## Publication Research

Research paper publications in a reputed journal are equally important by scholars as to know about what publishers do with research paper after publications?  Also, criteria the selection of journals, on the base of the impact factor of journal or 2-5 years citation per documents analysis?

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