I WANT THE PPT OF PHYSICS ON CURRENT ELECTRICITY FOR CLASS 12 VERY FAST ....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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I need maths ppt for class 11 and 12 n.c.e.r.t. texts ....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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To get full information or details of ballistic galvanometer practical viva questions please have a look on the pages

https://sandeepmnit.files.wordpress2012/08/ballistic-galvanometer-1_2.pdf

https://en.wikipediawiki/Ballistic_galvanometer

http://labs.physics.dur.ac.uk/level1/projects/script/archive/galvanometer.pdf

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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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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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CBSE class 12 physics investigatory Projects tangent galvanometer
CBSE reintroduced investigative projects in physics is AISSCE WEF 2013 applicable to students who are in class XI during the academic year 2011-12 and 2013 Board Exam writing.

Work is now only for demonstration purposes. The student must perform a minimum of 15 experiments per year.

For the exam, he or she must perform two experiments; one of the section a and section B one.

The proposed investigative PROJECTS CLASS XII

1 the various factors on which you can examine the inter ....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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Physicslab Sonometer Viva Questions
01. What is the principle involved in Sonometer experiment?
Ans: Resonance
02. Which type of waves are produced in Sonometer experiment?
Ans: Stationary Transverse waves
03. What are transverse waves?
Ans: If the vibrations of the particles are perpendicular to the propagation of the wave, those waves are said to be transverse waves.
04. Which type of transformer is used in sonometer experiment and what is it?
Ans: Step down transformer. It is a device, which converts high voltage currents to low volt ....etc

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