F–2482 Sub. Code 7BPH1C1

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Wk 4 F–2482 B.Sc. DEGREE EXAMINATION, NOVEMBER 2019 First Semester Physics PROPERTIES OF MATTER AND SOUND (CBCS – 2017 onwards) Time : 3 Hours Maximum : 75 Marks Section A (10 2 = 20) Answer all questions. 1. Define Hooke’s law. íúU Âvø¯ Áøμ¯Ö. 2. Define elastic limit. Áøμ¯Ö «m]°¯À GÀø». 3. What is non-uniform bending? ^μØÓ ÁøÍÄ GßÓõÀ GßÚ? 4. What is cantilever? ÁøÍa \mh® GßÓõÀ GßÚ? 5. Write Poiseuille’s formula. £õ´_¼ß Áõ´¨£õmøh GÊxP. 6. Define coefficient of viscosity. £õQ¯À SnPzøu Áøμ¯Ö. Sub. Code 7BPH1C1
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Transcript of F–2482 Sub. Code 7BPH1C1

First Semester
(CBCS – 2017 onwards)
Section A (10 2 = 20)
Answer all questions.
íúU Âvø¯ Áøμ¯Ö.
2. Define elastic limit.
^μØÓ ÁøÍÄ GßÓõÀ GßÚ?
4. What is cantilever?
ÁøÍa \mh® GßÓõÀ GßÚ?
£õ´_¼ß Áõ´¨£õmøh GÊxP.
6. Define coefficient of viscosity.
£õQ¯À SnPzøu Áøμ¯Ö.
Sub. Code 7BPH1C1
Gί ^›ø\ C¯UP® GßÓõÀ GßÚ?
8. What is noise pollution?
J¼ ©õ_£kuÀ GßÓõÀ GßÚ?
9. What is the velocity of sound in air medium?
ÁÎ ©sh»zvÀ J¼°ß vø\÷ÁP® ¯õx?
10. Write any two applications of ultrasonic waves.
«ö¯õ¼ Aø»PÎß H÷uÝ® C¸ £¯ßPøÍ GÊxP.
Section B (5 5 = 25)
Answer all questions, choosing either (a) or (b).
11. (a) Deduce the expression for Poisson’s ratio in terms of elastic constants.
«m] ©õÔ¼Pøͨ £¯ß£kzv £õ´\õß uPÂØPõÚ
\©ß£õmøh¨ ö£ÖP.
{ø»°¯À •ÖUS •øÓ°À Âø쨦U SnPzøuU
PnUQkP.
ÁøÍ \mhzvß CÓUPzvØPõÚ ÷PõøÁø¯¨ ö£ÖP.
Or
(b) Explain the experimental determination of Young’s modulus using mirror and telescope.
\©uÍ Bi ©ØÖ® öuõø» ÷|õUQø¯¨ £¯ß£kzv
¯[SnP® PnUQk® ÷\õuøÚø¯ ÂÁ›.
3
Wk 4 13. (a) Calculate the excess of pressure in a liquid drop and
bubble.
PnUQk.
Or
(b) Deduce the equation of continuity liquid flow with suitable explanation.
uS¢u ÂÍUPzxhß öuõhº vμÁ KmhzvØPõÚ
\©ß£õmøh Á¸Â.
14. (a) What are free, Damped and forced vibrations? Explain.
uøh¯ØÓ, uøh³Ö ©ØÖ® vo¨¦ AvºÄPÒ GßÓõÀ
GßÚ? ÂÍUSP.
(ii) What are characteristics of musical sound.
(i) JzuvºÂß Tºø©ø¯ ÂÍUSP.
(ii) Cø\ö¯õ¼°ß ußø©PÒ ¯õøÁ?
15. (a) Deduce the expression for longitudinal waves in gases.
Áõ²UPÎÀ ö|mhø»¨ £μÁ¾UPõÚ ÷PõøÁø¯¨
ö£ÖP.
«ö¯õ¼Aø»PÒ GßÓõÀ GßÚ? Auß £s¦PøÍ
GÊxP.
Answer any three questions.
÷\õuøÚø¯ ÂÁ›.
17. How to determine the Young’s modulus of a bar by cantilever oscillation method.
ÁøÍ\mh Aø»ÂøÚ¨ £¯ß£kzv J¸ \mhzvß ¯[
SnPzøu GÆÁõÖ PnUQkÁõ´?
18. Explain experimental determination of viscosity of low viscous liquid by capillary flow method.
~sxøÍ Kmh •øÓ°À SøÓ £õQ¯À ©v¨¦ öPõsh
vμÁzvß £õQ¯À Gs PnUQk® ÷\õuøÚø¯ ÂÍUSP.
19. Explain experimental setup, working and uses of Melde’s string with neat diagram.
ö©Àj ÷\õuøÚ Aø©¨¦, ö\¯À£õk ©ØÖ®
£¯ß£õkPøÍz uS¢u £hzxhß ÂÁ›.
20. Explain production of ultrasonic waves by piezo electric oscillator.
AÊzu ªßxi¨£õß Aø»°¯ØÔø¯¨ £¯ß£kzv
«ö¯õ¼ Aø»PøÍ E¸ÁõUS® •øÓø¯ ÂÁ›.
——————
First Semester
Section A (10 2 = 20)
Answer all questions.
2. What is static and dynamic friction?
{ø»°¯À ©ØÖ® C¯UP¯À Eμõ´Ä GßÓõÀ GßÚ?
3. Write the Newton’s law of gravitation.
{³mhÛß Dº¨¦ Âv°øÚ GÊxP.
4. What is escape velocity?
Âk£k vø\ ÷ÁP® GßÓõÀ GßÚ?
5. Define moment of inertia.
Áøμ¯Ö : {ø»©z v¸¨¦zvÓß.
Sub. Code 7BPH1C2
Wk 4 6. Why the compound pendulum called as ‘‘Compound
pendulum’’?
7. Define centre of pressure.
Áøμ¯Ö AÊzu ø©¯®.
ªuøÁU Põ¨¦¯μ® GßÓõÀ GßÚ?
9. What is length contraction?
}ÍU SÖUP® GßÓõÀ GßÚ?
\õº¦z vø\÷ÁP® GßÓõÀ GßÚ?
Section B (5 5 = 25)
Answer all questions choosing either (a) or (b).
11. (a) Calculate the centre of gravity of right solid cone.
vs©U T®¤ß Dº¨¦ ø©¯zøuU PnUQkP.
Or
(b) Explain the working of friction clutch.
Eμõ´Ä Pmk¨£õmk ö£õÔ°ß ö\¯À£õmøh ÂÁ›.
12. (a) State and explain the Kepler’s laws of planetary motion.
÷PõÒPÎß C¯UPzvØPõÚ öP¨Í›ß ÂvPøÍU TÔ
ÂÍUSP.
Or
Gß ©v¨ø£U PnUQkÁuØPõÚ £õ´ì ÷\õuøÚ
•øÓø¯ ÂÍUSP.
F–2483
3
Wk 4 13. (a) Define torque. How is it related to angular
momentum?
GÆÁõÖ öuõhº¦øh¯x?
÷|ºUSzx Aa_z ÷uØÓzvøÚU TÔ ÂÍUSP.
14. (a) Explain stability of floating bodies.
ªuUS® ö£õ¸mPÎß {ø»zußø©ø¯ ÂÁ›.
Or
ö£º÷Úõ¼°ß ÷uØÓzøuU TÔ {¹¤.
15. (a) Write the postulates of special theory of relativity.
]Ó¨¦a \õº¤¯À öPõÒøPUPõÚ Gk÷PõÒPøÍ GÊxP.
Or
P½¼¯ß ©ØÖ® »õμßì {ø»©õØÓa \©ß£õkPøÍ
÷ÁÖ£kzxP.
Answer any three questions.
16. Derive the expression for stability of a body on a rough inclined plane.
J¸ ö\õμö\õ쨣õÚ \õ´uÍzvÀ EÒÍ J¸ ö£õ¸Îß
{ø»zußø©UPõÚ \©ß£õmøh Á¸Â.
F–2483
4
Wk 4 17. Explain the variation ‘g’ with height, depth and latitude
from the surface of earth.
¦Â°ß ÷©Ø£μ¨¤À C¸¢x, E¯μ®, BÇ® ©ØÖ® Am\
÷μøPø¯¨ ö£õÖzx ‘g’ß ©õÖ£õmøh ÂÍUSP.
18. How to determine the acceleration due to gravity using compound pendulum?
Tmk F\ø»¨ £¯ß£kzv ¦Â±º¨¦ •kUPzvøÚ GÆÁõÖ
PnUQkÁõ´?
19. Explain the determination of metacentric height of a ship by experiment.
P¨£¼ß ªuøÁU Põ¨¦¯μ® PnUQk® ÷\õuøÚø¯ ÂÁ›.
20. Derive the expression for Einstein’s most energy equivalence.
IßìjÛß {øÓ & BØÓÀ \©ß£õmøh Á¸Â.
————————
Second Semester
Section A (10 2 = 20)
Answer all questions.
Põ»shº ©ØÖ® £õºßì •øÓ°ß {øÓPÒ ¯õøÁ?
2. Define Cv and Cp.
Cv ©ØÖ® Cp – Áøμ¯Ö.
3. What do you understand from temperature — entropy diagram?
öÁ¨£{ø» – Gß÷μõ¤ Áøμ£hzv¼¸¢x }º AÔÁx
¯õx?
4. Mention the conditions of reversibility for any heat engine process.
öÁ¨£ G¢vμzvß ÷|º Gvº {PÌÄUPõÚ {£¢uøÚPÒ
¯õøÁ?
©ÖU SκÄUPõÚ `zvμzøu GÊxP.
O® I–ß £s¦PÒ ¯õøÁ?
7. What is green house effect?
£_ø© Ãmk ÂøÍÄ GßÓõÀ GßÚ?
8. State Newton’s law of cooling.
{³mhß S뼀 Âv & Áøμ¯Ö.
9. Mention the relation between entropy and probability.
Gß÷μõ¤ ©ØÖ® {PÌuPÄ BQ¯ÁØÔUQøh÷¯ EÒÍ
öuõhºø£U TÖ.
÷£õ\õß ©ØÖ® ö£ºª¯õßPÒ GßÓõÀ GßÚ?
Section B (5 5 = 25)
Answer all questions choosing either (a) or (b).
11. (a) Describe the determination of specific heat capacity of liquid by Calendar and Barne’s continuous flow method.
vμÁzvß uß öÁ¨£ Hئz vÓß PõqÁuØPõÚ
Põ»shº ©ØÖ® £õºßì öuõhº £õ¯ •øÓ°À PõsP.
Or
(b) Explain the determination of specific heat capacity of a gas at constant volume by Joly’s differential stream calorimeter.
áõ¼°ß ÷ÁÖ£õmk }μõ P÷»õ›©õÛø¯U öPõsk
©õÓõu £¸©ÛÀ, J¸ Áõ²Âß uß öÁ¨£ Hئz vÓß
PõqÁuØPõÚ ÷\õuøÚø¯ ÂÍUSP.
3
Wk 4 12. (a) Discuss the change of entropy in reversible and
irreversible process.
{PÌøÁ ÂÁõv.
Or
(b) What is thermodynamic third law? List the physical significance of entropy.
öÁ¨£ C¯UP¯¼ß ‰ßÓõ® Âvø¯U TÖ.
Gß÷μõ¤°ß £s¦PøÍU TÖ.
13. (a) Discuss the construction and working of Porous Plug experiment.
~s xøÍa ÷\õuøÚ°ß Aø©¨¦ ©ØÖ® ö\¯À£k®
ÂuzvøÚ ÂÁõv.
BUêáß vμÁ©õUPÀ ÷\õuøÚ •øÓø¯ ÂÍUS.
14. (a) Illustrate the determination of specific heat of liquid by Newton law of cooling.
{³mhß S뼀 Âv öPõsk vμÁzvß uß öÁ¨£
Hئz vÓß PõqÁuØPõÚ ÷\õuøÚø¯ ÂÁ›.
Or
(b) Explain the determination of thermal conductivity of a bad conductor by Lee’s disc method.
A›vØPhzv°ß öÁ¨£U Phzx vÓøÚ ½&Ámk
•øÓ°À Põquø» ÂÍUS.
15. (a) Explain the theory behind the micro and macro states.
ø©U÷μõ (^μÍÄ) ©ØÖ® ÷©U÷μõ (÷£μÍÄ) {ø»PÎß
öPõÒøPø¯ ÂÁ›.
4
Wk 4 (b) Distinguish the MB, FD and BE statistics (any five
points).
(HuõÁx I¢x ©mk®)
Answer any three questions.
16. Determine the specific heat capacity of gas at constant pressure by Regnault’s method.
Áõ²Âß AÊzu® ©õÓõ uß öÁ¨£ Hئz vÓß
PõqÁuØPõÚ öμUÚõÀm ÷\õuøÚø¯ ÂÍUSP.
17. Describe the working of Carnot engine. Find its efficiency.
PõºÚõm G¢vμ® ÷Áø» ö\´uø» ÂÁ›. Auß £¯ÝÖ
vÓøÚU PõsP.
18. Obtain the expression for the fall in temperature by adiabatic demagnetization in a paramagnetic gas.
£õμõ Põ¢u Áõ²Âß öÁ¨£©õØÕhØÓ Põ¢u }UP •øÓ°À
öÁ¨£ SøÓÄUPõÚ ÷PõøÁø¯ öPõnºP.
19. Illustrate the construction and find the solar constant by water flow pyrheliometer.
}º FØÖ ø£÷μõ¼÷¯õ©õÛø¯U Aø©¨ø£U öPõsk `›¯
©õÔ¼ Põquø» ÂÍUS.
ö£ºª&øhμõU ÂμÁÀ ÂvUPõÚ ÷PõøÁø¯ öPõnºP.
—————
Second Semester
(CBCS – 2017 onwards)
Section A (10 2 = 20)
Answer all questions.
ªßÚõØ £S¨¤ß Cμsk £¯ß£õkPøÍz u¸P.
4. What is Peltier coefficient?
ö£Ài¯º SÚP® ¯õx?
5. Define coercivity.
Sub. Code 7BPH2C2
Põ¢uz u¯UP® GßÓõÀ GßÚ?
7. State Faraday’s law of electromagnetic induction.
ªßPõ¢uz ysh¾UPõÚ £õμ÷h Âv°øÚz u¸P.
8. What is self-inductance?
uß yshÀ GßÓõÀ GßÚ?
9. Define displacement current.
10. Define Hertz.
Áøμ¯Ö : öíºm_.
Answer all questions, choosing either (a) or (b).
11. (a) Derive an expression for capacity of a parallel plate capacitor with dielectric medium.
J¸ CønzuPmk ªß÷uUQ°ß ªß÷uUS vÓÝUPõÚ
÷PõøÁø¯ Á¸Â.
(b) Derive an expression for capacity of a spherical capacitor.
÷PõÍ ÁiÁ ªß÷uUQ°ß ªß÷uUS vÓÝUPõÚ
÷PõøÁø¯ Á¸Â.
ªßÚõØ£S¨¤ß £¯ßPøÍ ÂÍUPÄ®.
Or
Wk 3 (b) Explain the thermoelectric diagram and its uses.
öÁ¨£ªß Áøμ£hzvøÚ ÂÍUQ Auß £¯ßPøÍz
u¸P.
13. (a) Derive an expression for loss of energy due to hysteresis.
Põ¢u u¯UP PßÛ°ß ÷£õx HØ£k® BØÓÀ
CǨ¤ØUPõÚ ÷PõøÁø¯ Á¸Â.
Or
(b) Give the properties of ferromagnetic materials.
ö£÷μõ Põ¢u¨ ö£õ¸mPÎß £s¦PøÍz u¸P.
14. (a) Derive an expression for self inductance of a long solenoid.
}Í P®¤a_¸Îß uß yshÀ GsoØUPõÚ
\©ß£õmiøÚ Á¸Â.
ö\´QÓx GߣuøÚ ÂÁ›.
15. (a) Give the theory of magnitude of displacement of current.
Ch¨ö£¯ºa] ªß÷ÚõmhzvØPõÚ öPõÒøP°øÚz
u¸P.
÷©UìöÁÀ \©ß£õmiøÚ Á¸ÂUPÄ®.
F–2485
Answer any three questions.
16. Derive an expression for the capacity of a cylindrical capacitor.
E¸øÍ ÁiÁ ªß÷uUQ°ß ªß÷uUS vÓß Põq®
\©ß£õmiøÚ Á¸Â.
Q¨ì öíÀ®÷íõÀmì \©ß£õmiøÚ Á¸Â.
18. Give the properties of dia, para and ferromagnetic materials.
øh¯õ, £õμõ ©ØÖ® ö£÷μõ Põ¢u¨ ö£õ¸mPÎß £s¦PøÍ
u¸P.
19. Explain Rayleigh’s method to measure the coefficient of self inductance.
uß yshÀ Gs Põn EuÄ® μõ÷»°ß •øÓ°øÚ
ÂÍUPÄ®.
————————
Third Semester
Part A (10 2 = 20)
Answer all questions.
÷PõÍP ¤ÓÌa] GÆÁõÖ SøÓ¨£x?
2. What is the principle of direct vision spectroscope? Mention its importance.
÷|º £õºøÁ {Ó©õø»©õÛ°ß uzxÁ® GßÚ? Auß
•UQ¯zxÁzøu TÖP.
3. Determine the thickness of a thin plate by Michelson’s interferometer.
ø©UPÀ\ß SÖURmk©õÛ ‰»® J¸ umiß ui©øÚU Põs.
4. What is interference? How do you get fringes in air wedge?
SÖURmk ÂøÍÄ GßÓõÀ GßÚ? PõØÖ B¨¦ £møhPøÍ
GÆÁõÖ öPõnºÁõ´?
5. Write down the comparison between zone plate and convex lens.
©sh» umk ©ØÖ® S ÂÀø» BQ¯ÁØøÓ J¨¤kP.
Sub. Code 7BPH3C1
7. Define Polaroid. Mention its uses.
÷£õ»μõ´k – Áøμ¯Ö. Auß £¯ßPøÍ TÖ.
8. What is dextro and leavo rotatory?
Á»g _ÇØÔ ©ØÖ® Chg _ÇØÔ GßÓõÀ GßÚ?
9. What are microwave active and inactive?
~snø» ö\¯¼ ©ØÖ® ö\¯»ØÓx GßÓõÀ GßÚ?
10. State Raman effect. Mention its uses.
Cμõ©ß ÂøÍÄ – TÖ. Auß £¯ßPøÍU TÖ.
Part B (5 5 = 25)
Answer all questions, choosing either (a) or (b).
11. (a) Obtain the expression for dispersion without
deviation.
öPõnºP.
Or
a distance.
CøhöÁÎöPõsk Aø©US®÷£õx {Ó¨¤ÓÌa]
}USuÀ •øÓø¯ ÂÍUS.
3
sp 4 12. (a) Explain the determination of radius of curvature of
a lens by Newton’s rings.
}³mhß Áøͯ •øÓ°À ÂÀø»°ß ÁøÍÄ Bμ®
Põquø» ÂÍUSP.
Or
(b) Find the refractive index of a glass by Jamin’s interferometer.
Psnõi°ß JλPÀ Gs Põquø» á«ß
SÖURmk©õÛ ‰»® PõsP.
13. (a) Illustrate the theory of Fresnel’s diffraction at circular aperture.
Ámh xøÍ°À L¤μöÚ¼ß Âή¦ ÂøÍÄ
öPõÒøPø¯ ÂÁ›.
Or
(b) Explain the theory and experiment to determine the wavelength by plane diffraction grating.
J¸ \©uÍ RØÓÛø¯ öPõsk, Auß öPõÒøP ©ØÖ®
J롧 Aø»}»® Põquø» ÂÍUS.
14. (a) What is optical activity? Discuss the Fresnel’s explanation of optical activity.
Jΰ¯À ÂøÚ GßÓõÀ GßÚ? Jΰ¯À ÂøÚUPõÚ
L¤μöÚ¼ß ÂÍUPzøuU öPõk.
Or
(b) Deduce the expression for half wave plate and quarter wave plate.
Aøμ Aø»zumk ©ØÖ® PõÀ Aø»zumk
BQ¯ÁØÔß \©ß£õkPøÍz u¸Â.
15. (a) Explain the rotational spectra of rigid diatomic molecule. Mention its selection rule.
vs© Dμq ‰»UTÔß _ÇÀ {Ó©õø»UPõÚ ÂÍUP®
öPõk. Auß ÷uºÄ Âvø¯ öPõk.
Or
spectroscopy.
÷ÁÖ£kzxP.
Answer any three questions.
16. Explain the construction and function of Ramsden’s eyepiece with neat diagram.
μõ®ìjß PsnÖS P¸Â°ß Aø©¨¦ ©ØÖ®
÷Áø»ö\´²® ÂuzvøÚ öuÎÁõÚ £hzxhß ÂÍUS.
17. What is air wedge? Explain its theory. Discuss the determination of the thickness of a thin wire by this method.
PõØÖ B¨¦ GßÓõÀ GßÚ? Cuß öPõÒøP°øÚ ÂÍUPÄ®.
Cøu¨ £¯ß£kzv, J¸ ö©À¼¯ P®¤°ß ui©ß Põquø»
ÂÁõv.
18. Describe the determination of resolving power of a prism.
J¸ •¨£mhPzvß £SvÓß Põquø» ÂÁ›.
19. Define specific rotatory power. Explain the determination of specific rotatory power of a sugar solution using Laurent’s half shade polarimeter.
uß _ÇØ] vÓß – Áøμ¯Ö. \ºUPøμ Pøμ\¼ß uß _ÇØ]
vÓøÚ »õμß]ß Aøμ{ÇÀ ÷£õ»›«mhº öPõsk ÂÍUS.
20. Describe the classical and quantum theory of Raman effect. Find its conclusion.
Cμõ©ß ÂøÍÄUPõÚ £Ç[öPõÒøP ©ØÖ® SÁõsh®
öPõÒøPø¯ ÂÁ›. Auß •iÄPøÍ Põs.
–––––––––
Fourth Semester
Section A (10 2 = 20)
Answer all questions.
2. Mention the properties of positive ray.
÷|ºPv›ß £s¦PøÍU öPõk.
3. What is Bohr magnetron? Calculate its value.
÷£õº ÷©PÚmμõß GßÓõÀ GßÚ? Auß ©v¨ø£ PnUQkP.
4. Find the fine structure of sodium D lines.
÷\õi¯® D Á›PÎß ~s Aø©¨ø£ Põs.
5. Define Mosley’s law. Mention its importance.
÷©õì÷» Âv – Áøμ¯Ö. Auß •UQ¯zxÁzøu TÖ.
Sub. Code 7BPH4C1
£iP® ©ØÖ® £iP AoU÷PõøÁ GßÓõÀ GßÚ?
7. List the laws of disintegration.
]øuÄUPõÚ ÂvPøÍU TÖ.
9. What is nuclear fusion? Give example.
AqUP¸ CønÄ GßÓõÀ GßÚ? GkuxUPõmk öPõk.
10. What are laptons and baryons?
ö»¨hõß ©ØÖ® ÷£›¯õßPÒ GßÓõÀ GßÚ?
Section B (5 5 = 25)
Answer all questions, choosing either (a) or (b).
11. (a) Write down the laws of photoelectric emission. Obtain the Einstein’s photoelectric equation.
J뻧 EªÌÄUPõÚ ÂvPøÍU TÖ. Ißìjß
J뻧 \©ß£õkPøÍ öPõnºP.
Or
(b) Explain the Lenard’s method to determine the e/m for photoelectron.
J뻧 Gö»UmμõÛß e/m Põq® ö»nõºk
÷\õuøÚø¯ ÂÍUSP.
F–2487
3
Wk ser 12. (a) List and explain the various quantum numbers
associated with vector atom model.
öÁUhº Aq ©õv›UPõÚ öÁÆ÷ÁÖ SÁõsh®
GsPøÍ TÔ ÂÍUSP.
Or
(b) Define Zeeman effect. Obtain the Debye’s explanation of normal Zeeman effect.
^©ß ÂøÍÄ – Áøμ¯Ö. \õuõμn ^©ß ÂøÍÄUPõÚ
j÷£°ß ÂÍUPzøuU öPõk.
13. (a) Explain the experimental verification for change in wavelength by Compton’s theory.
Põ®hõß öPõÒøP°ß ‰»® Aø»}» ©õØÓzøu
Põs£uØPõÚ \›£õºzuÀ ÷\õuøÚø¯ ÂÍUS.
Or
(b) Discuss the analysis of continuous and characteristic X-ray spectrum.
X–Pv›ß öuõhº ©ØÖ® £s¦ Á› {Ó©õø»PøÍ
ÂÁõv.
14. (a) Explain the principle, construction and working of Wilson Cloud chamber. Mention its advantages.
ÂÀ\ß •QÀ P»Ûß uzxÁ®, Aø©¨¦ ©ØÖ® ÷Áø»
ö\´uø» ÂÍUSP. Auß •UQ¯zxÁzøu TÖ.
Or
4
Wk ser (b) Define mean life. Deduce the expression to find the
mean life.
öPõnºP.
15. (a) Write down the reactions for the source of stellar energy.
|m\zvμ BØÓ¼ß ‰»zvØPõÚ ÂøÚø¯ GÊxP.
Or
(b) (i) What is nuclear fission? Give example.
(ii) Consider single Helium nucleus formed by the fusion of two deuterium nuclei. Find the energy released from fusion reaction.
(i) AqUP¸ ¤ÍÄ GßÓõÀ GßÚ? GkzxUPõmk
öPõk.
AqUPÒ J¸ O® AqUP¸øÁ
E¸ÁõUSQÓx GÛÀ, A¢u ÂøÚ¯õÀ
E¸ÁõS® BØÓø»U PõsP.
Section C (3 10 = 30)
Answer any three questions.
16. Describe the construction of Aston’s mass spectrograph. Explain how it is used to detect the isotopes. Mention its advantages and limitations.
Bìhõß {Ó©õø» Áøμ塧 Aø©¨ø£ ÂÁ›.
I÷\õ÷hõ¨ø£ PshÔ¯ Cx GÆÁõÖ £¯ß£kQÓx. Auß
£¯ßPÒ ©ØÖ® GÀø»PøÍU TÖ.
F–2487
5
Wk ser 17. (a) Calculate the magnetic dipole moment of electron
due to orbital and spin motion.
(b) Describe the proof of vector atom model by Stern
and Gerlach experiment. Mention its important
results.
Gö»UmμõÛß Põ¢u C¸ •øÚ v¸¨¦ vÓøÚU
PnUQkP.
(B) öÁUhº Aq ©õv›°ß {¹£Úzøu ìöhß – öPº»õa
÷\õuøÚ öPõsk ÂÁ›. Cuß •UQ¯zxÁzøuU TÖ.
18. State Bragg’s law. Obtain its mathematical form.
Describe how Bragg’s x-ray spectrometer is used to study
the crystal structure.
X–Pvº {Ó©õø»©õÛø¯ £¯ß£kzv GÆÁõÖ £iP
Aø©¨ø£ Põs£x Gߣøu ÂÁ›.
19. (a) What is beta ray? Mention its characteristics.
(b) Explain the construction and working of Betatron
as a beta particle accelerator.
(A) ¥mhõ Pvº GßÓõÀ GßÚ? Auß £s¦PøÍU TÖ.
(B) ¥mhõiμõÛß Aø©¨¦ ©ØÖ® Ax J¸ xPÒ
•kUQ¯õP ö\¯À£k® Âuzøu ÂÍUSP.
F–2487
Wk ser 20. (a) Illustrate the function of nuclear reactor.
(b) Give a short explanation on cosmic rays.
(A) Aq Eø» ÷Áø» ö\´uø» ÂÁ›.
(B) PõìªU PvºPøͨ £ØÔ SÔ¨¦ ÁøμP.
————————
Fifth Semester
Section A (10 2 = 20)
Answer all questions.
2. What is meant by Zener breakdown?
ö\Úõº •ÔÄ GßÓõÀ GßÚ?
3. What do you understand by transistor biasing?
iμõß]ìhº \õº¦ £ØÔ }º AÔÁx GßÚ?
4. Obtain the relationship between and .
©ØÖ® CÁØÔØQøh÷¯¯õÚ öuõhº¤øÚ Á¸Â.
5. What is a single stage amplifier?
JØøÓ {ø»¨ ö£¸UQ GßÓõÀ GßÚ?
6. Define : Transformer.
2
Wk 3 7. What are the desirable properties of a power amplifier?
J¸ vÓß ö£¸UQ°ß ¸®£zuUP £s¦PÒ ¯õøÁ?
8. What are the advantages of positive feedback?
÷|º¨¤ßÞmhzvß ]Ó¨¦PÒ ¯õøÁ?
9. What is meant by virtual ground?
©õ¯zuøμ GßÓõÀ GßÚ?
Section B (5 5 = 25)
Answer all questions, choosing either (a) or (b).
11. (a) Discuss the action of a bridge rectifier.
£õ» Aø»zv¸zv°ß ÷Áø»ø¯ ÂÁõv.
Or
NP \¢v øh÷¯õiß IV £s¦PøÍ ÂÍUS.
12. (a) Draw and explain the characteristics of a transistor in Common Emitter mode.
ö£õx EªÌ¨£õß Aø©¨¤À EÒÍ iμõß]ìhº
JßÔß £s¦PøÍ Áøμ¢x ÂÍUS.
Or
JFET JßÔß ö\¯À£õmiøÚ ÂÁ›.
F–2488
3
Wk 3 13. (a) With a neat circuit diagram, explain the action of
direct coupled amplifiers. ÷|º Cøn¨¦ ö£¸UQ°ß öuÎÁõÚ ªß_ØÖ¨
£hzxhß Auß ö\¯À£õmiøÚ ÂÍUSP.
Or
(b) Write a note on the classification of amplifiers. ö£¸UQPÎß ÁøP¨£õmiøÚ £ØÔ SÔ¨¦ GÊx.
14. (a) Explain the action of a Push-pull amplifier and its advantages.
uÒÐ&CÊ ö£¸UQ°ß ö\¯À£õmiøÚ ÂÁ› ©ØÖ®
Auß |ßø©PøÍ ÂÍUSP.
Or
(b) Describe the principles of negative feedback in amplifier with diagram.
ö£¸UQ°ß GvºªßÞmhz uzxÁ® £ØÔ £hzxhß
ÂÁ›UPÄ®.
15. (a) Explain the action of operational amplifier as an adder.
J¸ ö\¯Ø£õmk¨ ö£¸UQ ö\¯À£k® Âuzøu
ÂÍUSP.
Or
(b) What are the characteristics of an ideal Op-Amp? C»m]¯ ö\¯Øö£¸UQ°ß £s¦PÒ ¯õøÁ?
Section C (3 10 = 30)
Answer any three questions.
16. What is Zener diode? Explain how a zener diode can be used as a voltage regulator.
ö\Úõº øh÷¯õk GßÓõÀ GßÚ? Ax GÆÁõÖ J¸
ªß÷Úõmh JÊ[S£kzv¯õP £¯ß£kzu¨£kQÓx GÚ
ÂÍUS.
4
Wk 3 17. Describe voltage divider biasing of a transistor, with
necessary circuit diagram.
iμõß]ìhº JßÔß ªß÷Úõmh £S¨¦ •øÓ°øÚ uS¢u,
_ØÖ¨£hzxhß ÂÁ›.
18. Draw neat diagram of DC and AC circuits and explain working method.
DC ©ØÖ® AC _ØÖPøÍ Áøμ¢x Auß ÷Áø» ö\´²®
•øÓø¯ ÂÍUSP.
19. Describe the action of Hartely oscillator with circuit diagram and also obtain an expression for its frequency of oscillation.
J¸ íõºm¼ Aø»°¯ØÔ GÆÁõÖ ö\¯À£kQÓx Gߣøua
_ØÖ¨£hzxhß ÂÁ›zx Auß AvºöÁsqUPõÚ ÷PõøÁ
u¸ÂUPÄ®.
20. Explain how an operational amplifier acts a differentiator and an integrator.
ö\¯À£õmk ö£¸UQ JßÖ £S¨£õÚõPÄ® ©ØÖ®
öuõS¨£õÚõPÄ® GÆÁõÖ ö\¯À£kQÓx GߣuøÚ
ÂÍUSP.
Fifth Semester
Part A (10 2 = 20)
Answer all questions.
©õÔ&I {ÖÁ Âv•øÓPøÍ GÊx.
2. Write the syntax of printf function.
Printf \õº¤ß ö£õx ÁiÁ® GÊx.
3. What is the use of goto label statement?
goto label TØÔß £¯ß GßÚ?
4. Define an array.
\õº¤ß ÁøPPÒ ¯õøÁ?
¦Ó ©õÔPÒ GßÓõÀ GßÚ?
SÔö¯ß ©õÔ¼øÚ G[VÚ® ©v¨ø£ öPõk¨£´?
8. What is a structure?
Pmhø©¨¦ GßÓõÀ GßÚ?
£õ´Ä¨£h® GßÓõÀ GßÚ?
10. Write an algorithm to find the average of set of numbers.
öPõkUP¨£mh GsPÎß \μõ\› Põn £i•øÓ JßÔøÚ
GÊxP.
Answer all questions, choosing either (a) or (b).
11. (a) How will you define a symbolic constants in C? Explain with example.
C&{μ»õUP ö©õÈ°À EÒÍ Aøh¯õÍ ©õÔ¼ø¯
GÆÁõÖ {ÖÄÁõ´? Euõμnzxhß ÂÍUS.
“do...while” TØÔß £¯ß£õmiøÚ ÂÍUSP.
Or
(b) Explain, how one dimensional array are declared and initialized in C language.
C ö©õÈ°À JØøÓ £›©õn•øÓ AoÁøPPÒ
GÆÁõÖ AÔÂUP¨£mk öuõh[P¨£kQßÓÚ Gߣøu
ÂÍUSP.
3
Wk 3 13. (a) Explain how a function can be defined in C language
with its general form. C ö©õÈ°À, \õº¦ GÆÁõÖ Áøμ¯ÖUP¨£kQßÓx
Gߣøu Auß ö£õx ÁiÁzxhß ÂÍUSP..
Or
(b) Explain about automatic variable with example. uõÛ¯[Q ©õÔPÒ £ØÔ Euõμnzxhß ÂÍUSP.
14. (a) Explain the different between “Call by reference” and “Call by value”.
“Call by reference” ©ØÖ® “Call by value”
Cøh÷¯¯õÚ ÷ÁÖ£õkPøÍ ÂÍUSP.
Or
Pmhø©¨¦ ©õÔø¯ GÆÁõÖ AÔ¨£õ´ Gߣøu
ÂÍUSP.
15. (a) Write a C program to convert Celsius to Fahrenheit. Celsius¼¸¢x Fahrenheit&BP ©õØÖÁuØPõÚ
C ö©õÈ{μÀ JßÔøÚ GÊxP.
Or
(b) Write a C program to find the largest number of an array.
ArrayÀ EÒÍ ªP¨ö£›¯ GsønU Põs£uØPõÚ
C ö©õÈ {μÀ JßÔøÚ GÊxP.
Part C (3 10 = 30)
Answer any three questions.
C ö©õÈ°À EÒÍ £À÷ÁÖ C¯UQPøÍ ÂÁ›.
F–2489
4
Wk 3 17. Explain the various forms of “if” statement in C with
example.
C ö©õÈ°À EÒÍ £À÷ÁÖ “if” TÖPøÍ Euõμnzxhß
ÂÁ›.
R÷Ç EÒÍøÁPøÍ ÷ÁÖ£kzvU Põmk
(A) Actual and formal parameters
(B) Global and Local variables
(C) Automatic and static variables.
19. Summarize the rules governing the declaration of a structure. Write the general format for declaring and initializing a structure. Explain with example.
Pmhø©¨¦ JßøÓ Aø©¨£uØPõÚ ÁÈPøÍ öuõSzx
EøμUPÄ®. Pmhø©¨¦ JßøÓ AÔ¨£uØS® ©ØÖ®
öuõh[SÁuØS® E›¯ ö£õx ÁiÁzøu GÊv,
Euõμnzxhß ÂÍUSP.
20. Write a C program to Add and Subtract of two matrices.
C¸ AoPøÍ TmhÄ® ©ØÖ® PÈUPÄ® ö\´ÁuØPõÚ
C ö©õÈ {μÀ JßÔøÚ GÊxP.
————————
Fifth Semester
Section A (10 2 = 20)
Answer all questions.
1. Why is there a need for non conventional sources of energy?
©μ¦\õμõ BØÓÀ ‰»[PÒ Hß ÷uøÁ¨£kQÓx?
2. What is a renewable energy?
¦x¨¤UPuUP BØÓÀ GßÓõÀ GßÚ?
3. Mention the types solar collectors.
`›¯ ÷\P›¨£õÛß ÁøPPÒ SÔ¨¤kP.
4. What are the advantages of solar energy sources?
`›¯ BØÓÀ ‰»[PÎß |ßø©PøÍ GÊxP.
5. List out the application of solar water heater.
`›¯ }º `÷hØÔ°ß £¯ßPøÍ u¸P.
Sub. Code 7BPHE1B
2
Wk 3 6. What are the two problem associated with the use of solar
energy?
¯õøÁ?
PõØÖ BØÓ¼ß PõμoPÒ ¯õøÁ?
8. Define wind energy.
PõØÖ BØÓÀ Áøμ¯Ö.
E°›¯À BØÓÀ ©õØÓ® GßÓõÀ GßÚ?
10. Define Photosynthesis.
Answer all questions, choosing either (a) or (b).
11. (a) Explain Solar constant.
`›¯ ©õÔ¼ø¯ ÂÍUSP.
12. (a) Explain the working principle of concentrating collectors.
ö\ÔÅmh¨£mh ÷\P›¨£õß ö\¯À£k® Âuzøu
ÂÍUSP.
Or
`›¯ BØÓÀ ÷\P›¨¤øÚ¨ £ØÔ GÊxP.
13. (a) Explain Box Type solar cooker.
ö£mi ÁøP `›¯ \ø©¨£õß £ØÔ ÂÍUSP.
Or
14. (a) Give the advantages and disadvantages of Geothermal power.
¦Â öÁ¨£ BØÓ¼ß |ßø© wø©PøÍ GÊxP.
Or
WECS ß Ai¨£øh £õP[PøÍ £ØÔ ÂÍUSP.
15. (a) Explain the production of energy from tides.
Aø»°ß ‰»® BØÓÀ E¸ÁõUSuÀ £ØÔ ÂÍUSP.
Or
(b) Explain working principles of small scale hydro electric system.
]Ô¯ ÁøP¯õÚ }º ªß Aø©¨¦ ö\¯À£k® Âuzøu
ÂÍUSP.
Answer any three questions.
BØÓÀ ‰»[PЮ Auß ÷uøÁPøͲ® £ØÔ ÂÁõv.
F–2491
4
Wk 3 17. Explain the working principle of flat plate collector.
\©uÍ umk ÷\P›¨£õß ÷Áø» ö\´²® Âuzøu ÂÍUSP.
18. Discuss the working principle of solar green house and also mention its advantages.
`›¯ £_ø© Ãk ÷Áø» ö\´²® Âuzøu ÂÁõv ÷©¾®
Auß |ßø©PøÍ u¸P.
19. What is Geothermal energy? Explain the estimation of its availability and the nature of geothermal energy fields.
¦Â öÁ¨£ BØÓÀ GßÓõÀ GßÚ? Auß C¸¨¦ ©v¨¥k,
¦Â öÁ¨£ BØÓ¼¸¨¤h[PÎß ußø© £ØÔ GÊxP.
20. Discuss Biogas generation with neat diagram and also mention its applications.
E°›¯À Áõ² E¸ÁõS® •øÓ°øÚ öuÎÁõÚ £hzxhß
ÂÍUSP. ÷©¾® Auß £¯ßPøÍ u¸P.
————————
Fifth Semester
(CBCS – 2017 onwards)
Part A (10 2 = 20)
Answer all questions.
÷»\›ß £s¦PøÍ Á›ø\¨£kzx.
2. What is Stimulated emission?
ysh¨£mh EªÌÄ GßÓõÀ GßÚ?
3. Mention the different types of LASER.
÷»\›ß öÁÆ÷ÁÖ ÁøPPøÍ SÔ¨¤k.
4. Distinguish between a ruby laser and He-Ne Laser.
¹¤ ÷»\º ©ØÖ® O®&{¯õß ÷»\›ß ÷ÁÖ£õkPøÍz
u¸P.
5. Give any two applications of LASER in Medical field.
©¸zxÁz xøÓ°À ÷»\›ß H÷uÝ® Cμsk £¯ßPøÍ
u¸P.
Holography GßÓõÀ GßÚ?
Jΰ¯À CøÇ Gߣx ¯õx?
8. Define Acceptance angle.
9. What do you mean by splicing of fibres?
CøÇ Cøn¨¦ Gߣuß ö£õ¸Ò ¯õx?
10. Mention the advantages of fibre optic Communication.
CøÇ Jΰ¯À ö\´vz öuõhº¤ß £¯ß£õkPøÍ
SÔ¨¤kP.
Answer all questions, choosing either (a) or (b).
11. (a) How population inversion is achieved in LASER? Explain.
÷»\›À, öuõøP uø»RÇõUP® GÆÁõÖ
\õzv¯¨£kQÓx? ÂÍUSP.
Jΰ¯À JzuvºÁõß £ØÔ ]Ö SÔ¨¦ ÁøμP.
12. (a) Discuss in detail about the basic principle of LASER.
÷»\›ß, Ai¨£øh uzxÁzøu ›ÁõP ÂÁ›.
Or
SøÓPhzv ÷»\øμ ÂÁ›.
13. (a) Write a note on LASER as a diagnostic tool.
÷»\º – PshÔuÀ P¸Â Gߣx SÔzx ]Ö SÔ¨¦
ÁøμP.
Or
NDT°À ÷íõ÷»Qμõ® SÔURmk ÂøÍÄ ©õÛø¯
ÂÁ›.
14. (a) What is acceptance angle? Derive a expression for acceptance angle.
HئU ÷Põn® GßÓõÀ GßÚ? HئU ÷Põn®
Põs£uØUPõÚ \©ß£õmiøÚ Á¸Â.
Or
(b) Write an essay about the losses of signal in optical fibre.
Jΰ¯À CøÇ°À HØ£k® CǨ¦Pøͨ £ØÔ
›ÁõP GÊxP.
JÎ Psk¤i¨£õß £ØÔ SÔ¨¦ GÊx.
Or
F–2492
Answer any three questions.
16. Derive the relation between the probabilities of spontaneous emission and stimulated emission in terms of Einstein’s coefficients.
Ißìøhß SnP® Á¸Âzx ußÛaø\¯õÚ EªÌÄ
ysh¨£mh EªÌÄPøÍ ÂÍUSP.
17. Explain with neat sketches, the principle, construction and working of a He-Ne Laser.
O®&{¯õß ÷»\›ß uzxÁ®, Pmhø©¨¦ ©ØÖ®
ö\¯Ø£k® Âuzøu, öuÎÁõÚ £hzxhß ÂÁ›.
18. Explain the applications of LASER in industry and Medical fields.
öuõÈØxøÓ ©ØÖ® ©¸zxÁ xøÓPÎÀ ÷»\›ß
£¯ß£õkPøÍ ÂÍUSP.
19. What is numerical aperture? Derive an expression for the numerical aperture.
Gs vÓ¨¦ GßÓõÀ GßÚ? Gs vÓ¨¦UPõÚ ÷PõøÁø¯
Á¸Â.
Jΰ¯À Cøn¨£õÛß ÁøPPøÍ ÂÁ›.
————————
Fifth Semester
Section A (10 2 = 20)
Answer all questions.
Ãa_ Aø» £s÷£ØÓ® GßÓõÀ GßÚ?
2. Draw the spectrum of FM.
AvºöÁs £s÷£ØÓ {Ó©õø»ø¯ ÁøμP.
3. What is a demodulator?
Aø» £ß¤ÓUQ GßÓõÀ GßÚ?
4. Give the parameter of receiver.
Hؤ°ß PõμoPøÍ u¸P.
5. State the various Technology of Digital modulation.
£À÷ÁÖ ÁøP¯õÚ iâmhÀ £s÷£ØÓzvß
öuõÈØ~m£zøu u¸P.
Sub. Code 7BPHE2A
Wk 3 6. What are the disadvantages of digital Communication?
iâmhÀ ö\´v öuõhº¤ß |ßø©PÒ GßÚ?
7. Define Topology.
Pmhø©¨¤¯À Áøμ¯Ö.
8. What is Downlink?
RÌ Cøn¨¦ GßÓõÀ GßÚ?
9. What are the types of fibre based on propagation of light?
JÎ £μ¨¤À Ai¨£øh°À JΰøÚ £õvUS® ÁøPPÒ
¯õx?
Answer all questions, choosing either (a) or (b).
11. (a) Explain Varactor diode FM modulator.
öÁμõUhº øh÷¯õk FM £ß÷£ØÔ ÂÍUSP.
Or
AiU_Ámk £UP AP» •øÓø¯ ÂÍUSP.
12. (a) Explain demodulation of PM.
PMß ¤ß¤ÓUPzvøÚ ÂÍUSP.
Áøͯ {ø» ÷uõØÓzøu ÂÍUSP.
ASK ÂÍUSP.
iâmhÀ ö\´v öuõhº¤ß |ßø©PøÍ £mi¯¼kP.
14. (a) Discuss LAN.
÷©õhzvøÚ £ØÔ SÔ¨¦ GÊxP.
JØøÓ Cøn ÁøP JÎ CøÇ°øÚ ÂÍUSP.
Or
JÎ CøÇ°ß |ßø©PøÍ £mi¯¼kP.
Section C (3 10 = 30)
Answer any three questions.
16. Describe Pulse width modulation.
xi¨¦ AP»® £ß÷£ØÓzøu ÂÍUSP.
17. Describe phase demodulation circuit operation for the peak and conversion detectors.
Pmh £ß¤ÓUQøh¯ £hzxhß ö\¯À£k® Âuzøu
ÂÍUSP.
FSK £ØÔ ÂÁõv.
(a) star topology
(b) hybrid topology.
(B) P»¨¦ Pmhø©¨¤¯À.
ÂÁõv.
Fifth Semester
Section A (10 2 = 20)
Answer all questions.
2. What is a primitive cell?
‰» A»S Tk GßÓõÀ GßÚ?
3. Define cohesive energy.
4. What is a covalent bond?
\P ¤øn¨¦ GßÓõÀ GßÚ?
A¯o •øÚÁõUP® GßÓõÀ GßÚ?
6. Write down Clausius-Mossotti equation.
QÍõæ¯ì&ö©õ\õmi \©s£õmøh GÊxP.
Sub. Code 7BPHE2C
EÒÍõº¢u SøÓ Phzv GßÓõÀ GßÚ?
8. Define Hall effect.
íõÀ ÂøÍÄ Áøμ¯Ö.
9. Define critical temperature.
÷áõ\¨\ß ÂøÍÄ GßÓõÀ GßÚ?
Section B (5 5 = 25)
Answer all questions, choosing either (a) or (b).
11. (a) Explain the lattice parameters of an unit cell.
A»S Tmi¾ÒÍ AoU ÷PõøÁ AÍÃkPÒ ÂÁ›.
Or
12. (a) Explain ionic bond with example.
A¯Û¨¤øn¨ø£ Euõμnzxhß ÂÁ›.
Or
13. (a) List out the physical properties of metals.
E÷»õPzvß C¯Ø¤¯À £s¦PøÍ £mi¯¼k.
Or
3
Wk 3 (b) What are the postulates of free electron theory?
PmhØÓ G»Umμõß öPõÒøP°ß Gk÷PõÒPÒ ¯õøÁ?
14. (a) Mention the properties of semiconductor.
SøÓUPhzv°ß £s¦PøÍ SÔ¨¤kP.
Or
(b) What are the difference between intrinsic and extrinsic semiconductor?
y¯ ©ØÖ® ©õ_ P»¢u SøÓPhzvPÎøh÷¯²ÒÍ
÷ÁÖ£õkPÒ ¯õøÁ?
«UPhzvPÎß £s¦PøÍ GÊxP.
Answer any three questions.
16. Obtain an expression for the perpendicular distance between two parallel planes in a cubic crystal lattice.
PÚ \xμ £iP AoU÷PõøÁ°À C¸ Cøn uÍ[Qøh²ÒÍ
ö\[Szx öuõø»ÂØPõÚ ÷PõøÁø¯ Á¸Â.
17. Derive an expression for the cohesive energy of an ionic crystal.
A¯Û £iPzvß ¤øn¯À BØÓ¾UPõÚ ÷PõøÁø¯ Á¸Â.
18. Describe the different types of polarisation.
•øÚÁõUPzvß ÷ÁÖ£mh ÁøPPøÍ ÂÁ›.
F–2495
4
Wk 3 19. Explain the effects of electric field on N-type and P-type
semiconductors.
ÂøÍÄPøÍ ÂÁ›.
————————