Sathyabama University B.E/B.Tech-IInd Semester Applied Physics-II previous years ques

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Sathyabama University B.E/B.Tech-IInd Semester Applied Physics-II previous years question papers

PART – A (10 x 2 = 20)
Answer All the Questions
1. Distinguish between stream line and turbulent flow.
2. Define co-efficient of viscosity
3. What is adiabatic demagnetization?
4. Write any two magnetic thermometers for measuring low
temperatures.
5. What is photo elastic effect? Mention any two materials.
6. Define stress optic law.
7. Distinguish between fission and fusion.
8. What is chain reaction? Explain with examples.
9. What are the applications of ultrasonics in medicine (any four)
10. Mention any four properties of X – rays.
Part – B (5 x 12 = 60)
Answer All Questions
11. a. State and prove Bernoulli’s theorem. (7)
b. Describe the construction and working of venturimeter. (5)
(or)
12. a. What is meant by critical velocity. (4)
b. Obtain Poiseuille’s formula for determination of Viscosity
of liquids . (8)
13. a. Discuss in detail the Cascade process of liquefying gases. (8)
b. Describe the principle of refrigeration. (4)
(or)
14. a. Give a detailed account on Joule-Thomson effect with the
relevant theory. (8)
b. Explain how the low temperature is obtained u sing
adiabatic demagnetization. (4)
15. a. Discuss the effect of stressed model under a plane polariscope.
(8)
b. Explain the applications of photoelastic method with examples.
(4)
(or)
16. a. What are Isoclinic and Ischromatic fringers? Explain how they
are Produced.
b. Describe the construction and working of photo elastic bench.
17. a. What are thermonuclear reactions? Discuss the carbon-nitrogen
cycle of thermonuclear reactions. (8)
b. Discuss the conditions for sustained nuclear fission reaction.
(4)
(or)
18. a. Describe with a neat sketch the construction and working of a
nuclear reactor. (8)
b. What are moderators? Give examples. (4)
19. a. Distinguish between radiography and fluoroscopy. (4)
b. Explain the construction and working of m Tc
99 generator and
describe how it is obtained? (8)
(or)
20. a. Describe the construction and working of Gamma ray camera.
(7)
b. Discuss the working of photomultiplier tube. (5)

PART - A (10 x 2 = 20)
Answer ALL the Questions
1. Write how a Venturimeter is used to measure the speed of flow of
a fluid in a pipe.
2. What are streamline and turbulent flow?
3. State Joule – Thomson effect.
4. Mention the principle of refrigeration.
5. State stress – optic law.
6. What are isoclinic fringes? Write any two properties of isoclinic
fringes.
7. What is nuclear fusion? Write any one fusion reaction.
8. What are the conditions for a material to be used as a modulator?
Write any two names of modulators.
9. What is meant by X-ray radiography?
10. What is radioactivity? What is half life period of a radioactive
material?
PART – B (5 x 12 = 60)
Answer All the Questions
11. (a) State Bernoulli’s theorem and derive the Bernoulli’s equation.
(b) Write any two features of Bernoulli’s equation.
(or)
12. (a) Derive the Poiseulle’s formula for the flow of liquid through
capillary tube.
(b) Explain about an experimental method used to find the
viscosity of the liquid using Poiseulle’s method.
13. Explain the phenomenon of adiabatic demagnetization. How will
you employ this phenomenon to produce and measure very low
temperature?
(or)
14. (a) With a neat sketch, explain the experimental arrangement of
the cascade process for the liquefaction of oxygen. (10)
(b) Explain how this cascade process in extended to liquefy
nitrogen. (2)
15. Derive a mathematical expression for the emergent beam from
the analyzer of a plane polariscope and discuss how it enables us
to determine the isochromatics and isoclinics.
(or)
16. (a) What is photoelastic effect? Mention any four photoelastic
material used.
(b) Describe the basic elements of a photoelastic bench and
explain the function of each.
17. Explain with neat sketch the principle, construction and working
of a nuclear power reactor.
(or)
18. (a) Distinguish between nuclear fission and nuclear fusion with
example. (8)
(b) What are the conditions to be satisfied for a sustained nuclear
reaction? (4)
19. Explain with a neat sketch, the principle, construction and
working of a scintillation counter.
(or)
20. Explain how ultrasonic wave is used for blood flow measurement with a neat sketch.

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Sathyabama University
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Jeppiaar Nagar,
Sholinganallur,
Chennai,
Tamil Nadu 600119 ‎
044 2450 3150 ‎
India

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