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 laser radiation?
Laser radiations have high intensity, high coherence, ....etc

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Plzz anybody give me the observation readings of LCR circuit.
1. Variation of various voltages.
2. Variation of voltages across with frequency for different R. ....etc

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Nowadays the demand for oscilloscopes are increasing. PC based
oscilloscope is used to view the waveforms of various types of electrical signals.
This circuit conditions different signals of frequency below 1 kHz and displays
their waveforms on the computers screen. The circuit is used to the input
waveform and convert it to the digital format for interfacing to the PC. The
software for acquiring the data into the PC and displaying the same on its screen is
written in Visual basic.
The input waveform is first applied to a rectifier compr ....etc

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What is the effect of temperature on on p-n junction diode????? ....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

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I WANT VIVA QUESTONS AND ITS ANSWERS FOR PN JUNCTION DIODE EXPERIMENT? ....etc

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http://seminarsprojects.net/Thread-junction-diode ....etc

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Physics Lab Viva Voce

(1) Torsional Pendulum :
(1) Define Rigidity of modulus ?
Ans : When tangential surface forces are applied on a body , the successive layers of the material are moved or sheared.This type of strain is called shearing strain. The ratio of tangential stress to shearing strain is called Rigidity of modulus
Rigidity of modulus= Tangential stress / shearing strain.
Tangential stress = Force/Area.
Shearing strain=
(2) Define Moment Of Inertia ?
Ans : It is the measure of the inertia of a body in rot ....etc

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Question 71Back to Top
Question: List the uses of solar cells.

Answer: A Solar cells or solar cell panels are used in:
1) Artificial satellites and in space probes like Mars orbiters
2) Wireless transmission systems or TV relay stations in remote locations
3) Traffic signals, calculators and in toys

Question 72Ba ....etc

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