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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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system software lab lab viva questions and answers pdf

VIVA VOCE QUESTIONS WITH ANSWERS INTRODUCTION

1. Define system software.
It consists of variety of programs that supports the operation of the
computer. This software makes it possible for the user to focus on the other problems to be solved with out needing to know how the machine works internally.
Eg: operating system, assembler, loader.

2. Give some applications of operating system.
to make the computer easier to use
to manage the resources in computer
process management
data ....etc

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c viva questions ....etc

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C viva questions

1. Who developed the C language?
2.How do you comment on program C?
3. How is the name C derived?
4. What is K & R C?
5. What is the preprocessor declaration?
6. Differentiate between constant and variable.
7.What is the type of data?
8. Name the basic data types of C.
9.Differentiate between string constant and character constant.
10. What is the integer, char, float range for a 16-bit computer?
11. What is a statement?
12. What is a keyword?
13.Difference between keywords and identifiers.
14. What is th ....etc

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In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions. The emerging coloration is a form of structural coloration. The directions of these beams depend on the spacing of the grating and the wavelength of the light so that the grating acts as the dispersive element. Because of this, gratings are commonly used in monochromators and spectrometers.

For practical applications, gratings generally have ridges or rulings on their sur ....etc

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SEMICONDUCTOR DIODE AND ZENER DIODE

1. Define knee voltage of a diode.

2. Draw VI characteristics of pn junction diode.

3. Although zener diode is operated in the reverse breakdown

region, but it does not burn. Why?

4. Differentiate between static and dynamic resistance of a diode.

5. Differentiate between avalanche and zener breakdown.

6. Draw the VI characteristics of an ideal diode.

Transistor characteristics CB, CE and CC

1.Draw the circuits of CB, CE and CC configurations using npn transistor.

2.Wh ....etc

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