Physics Lab Viva Voce Questions and its answers Laser Parameters



1. What is semi conductor diode laser?
Semiconductor diode laser is a specially fabricated pn junction diode. It emits laser light when it is
forward biased.

2. What is LASER?
The term LASER stands for Light Amplification by Stimulated Emission of Radiation. It is a device
which produces a powerful, monochromatic collimated beam of light in which the waves are coherent.

3. What are the characteristic of ....etc

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ABOUT THE BOOK:
This book is designed to meet the course on Engineering Physics Practical of engineering curriculum for the First Year engineering students.
Laboratory work is an important part of the process of learning physics where students apply their knowledge practically.
As no textbook available on the market on Engineering Physics dealt with the experimental part in detail and so in the classroom lecture, the authors
bring out this book. The authors present this book in a very lucid style such that even a below average student ca ....etc

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1. What is semi conductor diode laser?

Semiconductor diode laser is a specially fabricated pn junction diode. It emits laser light when it is
forward biased.

2. What is LASER?

The term LASER stands for Light Amplification by Stimulated Emission of Radiation. It is a device
which produces a powerful, monochromatic collimated beam of light in which the waves are coherent.

3. What are the characteristic of laser radiation?

Laser radiations have high intensity, high coherence, high monochoromation and high directionality
with less divergence.
....etc

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To get full information or details of rc circuit experiment viva questions and answers in btech 1st year physics lab please have a look on the pages

http://citchennai.eduwp-content/uploads/2014/01/Circuits.pdf

http://cg.nicbilaspur/ggpbsp3/Download%20Content/Download%20LAB%20MANUALS%20VIVA/Electronics%20&%20Telecommunication%20Deptt/Electrical%20&%20Electronic%20Measurement%20lab/Network%20Analysis%20viva.pdf

if you again feel trouble on rc circuit experiment viva questions and answers in btech 1st year physics lab please reply in that pag ....etc

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Examiner (E): What was the experiment allotted to you?

Students(S): Sir, I was assigned the experiment to determine the internal resistance of a primary cell using potentiometer.
E: OK, Tell me the principle of a potentiometer

S: Sir. The principle of a potentiometer is that the potential drop across any length of a wire of uniform cross section and composition and carrying a constant current is directly proportional to the length.
E: Good. What is internal resistance?

S: The resistance offered by the electrodes and electrolyte of a ....etc

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vtu viva questions with answers for physics

PHYSICS VIVA QUESTIONS FOR 1ST/2ND SEM:

What is diffraction?
How many types of diffraction are there? Which they are?
Distinguish between Fresnel and Fraun hofer classes of diffraction.
Distinguish between interference and diffraction.
What is grating? Define grating constant.
How do you distinguish between diffraction and refraction?
What is semiconductor?
What is zener diode?
On what factor does the breakdown voltage of zener diode depends?
What is breakdown voltage? Explain.
What is the differenc ....etc

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1. Under which category Magnetic, electrostatic and gravitational forces come? Non-contact forces
2. No matter how far you stand from a mirror, your image appears erect, How is the mirror likely to be? Either plane or convex
3. Due to which Phenomenon are advanced sunrise and delayed sunset found in the sky? Refraction of sunlight
4. Due to which Phenomenon is the formation of colours in soap bubbles? Interference of light
5. On which principle a pressure cooker works? Elevation of boiling point of water by application of pressure
6. ....etc

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physics practical viva questions for bsc

Q.1: Define surface tension?
Ans. The tangential cohesive force acting along the unit length of the surface of a liquid
T = F / L
Where F = total force along a line
L = length of the line
In this experiment:
F = m g = weight of the pan + weight in the pan.
L = 2 (length of the slide) + 2 (breadth of the slide).
Sometime we neglect the breadth since it is very small.

Q.2: What are units of surface tension in C.G.S. and S.I. (M.K.S.) system?
Ans. Dynes / cm (C.G.S.)
Newton / meter (M.K.S.)

Q.3: What ....etc

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engineering physics lab viva questions with answers

1. What is semi conductor diode laser?
Semiconductor diode laser is a specially fabricated pn junction diode. It emits laser light when it is
forward biased.

2. What is LASER?
The term LASER stands for Light Amplification by Stimulated Emission of Radiation. It is a device
which produces a powerful, monochromatic collimated beam of light in which the waves are coherent.

3. What are the characteristic of laser radiation?
Laser radiations have high intensity, high coherence, high monochoromat ....etc

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To get full information or details of engineering chemistry lab practical exam viva questions with answers please have a look on the pages

http://engineeringinterviewquestionsengineering-chemistry-lab-viva-questions-and-answers-pdf/

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