B.Sc Corporate Physics Question Paper 2007

Loyola College B.Sc. Physics April 2007 Geo Physics Question Paper PDF Download

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  LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

SC 14

B.Sc.  DEGREE EXAMINATION –PHYSICS

FIFTH SEMESTER – APRIL 2007

PH 5400 – GEO PHYSICS

 

 

Date & Time: 30/04/2007 / 1:00 – 4:00     Dept. No.                                                     Max. : 100 Marks

 

 

PART –  A                  10×2=20 marks

Answer ALL  questions.

  1. How can one seismically distinguish between an earth quake and a large explosion?
  2. What is the implication of a shadow zone in the internal structure of the earth?
  3. Distinguish between Rayleigh and Love seismic surface waves.
  4. Give the significant differences between the body wave and the surface wave.
  5. Define the term focus and epicentre.
  6. Write down the Laplace’s and Poisson’s equation obeyed by the gravitational potential.
  7. Explain briefly the Gauss method of determining the earth’s magnetic field.
  8. Write a note on geological time scale.
  9. List the two possible sources of heat with in the earth.
  10. How are the ages of rocks determined?

PART – B

Answer any FOUR questions.                                                     4×7.5=30 marks

  1. What are P and S waves? Describe the method by which the epicentre of an earthquake is located.
  2. Outline the principle and construction of the strain seismograph.
  3. Write a brief account of the magnitude and occurance of earthquakes.
  4. Explain the dynamo theory of Earth’s magnetism with the help of the Faraday disc generator.
  5. Discuss the variation of temperature with in the earth.

PART-C                                                                                                                                        Answer any FOUR questions.                                               4×12.5=50 marks

  1. Discuss the analogy between an optic wave and a seismic wave interms of reflection and refraction phenomenon.
  2. Discuss the theory of horizontal seismograph with a neat diagram and explain all possible cases.
  3. Explain the working of a) Hammond and Faller method of measuring gravity and    b) Worden gravity meter with neat diagram.
  4. Explain the theory of a) saturation magnetometer and b) Alkali vapour magnetometer.
  5. Given the theory of radioactive dating of rocks and minerals using a) the decay scheme of Rb87 and b)the decay scheme of K40.____________________

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Loyola College B.Sc. Physics April 2007 Bioinformatics – II (Genomics & Proteomics) Question Paper PDF Download

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             LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PHYSICS & CHEMISTRY

IB 38

FOURTH SEMESTER – APRIL 2007

PB 4204 – BIOINFORMATICS – II (GENOMICS & PROTEOMICS)

 

 

 

Date & Time: 19/04/2007 / 9:00 – 12:00 Dept. No.                                              Max. : 100 Marks

 

 

PART A

Answer all the following questions                                                                         (20 marks)

  1. Choose the correct answer (5 x 1  = 5 )

 

  1. ________ score presents the signal peptide cleavate site .
  2. a) C b) S c) A     d) Y
  3. PDB is a database of ________.
    1. secondary structures b) transmemrane helices
    2. c) 3D structures d) motifs.
  4. The noncoding regions of genomes are known as ________.
  5. a) introns b) exons c) promoter      d) signal peptides.
  6. 5‘ capping is a ________modification.
    1. post transcriptional b) translational
    2. c) splicing d) sequencing.
  7. ________ is the software for promoter site prediction.
    1. promoter 2.0 b) promoter 3.0
    2. c) promoter 6.0 d) promoter 1.0

 

  1. State whether the following statements are True or False (5 x 1 = 5 )
  1. Gene cloning can be used to produce insulin.
  2. Codon bias is the unequal usage of codons for aminoacids.
  3. C score is used to predict the signal peptide cleavate sites.
  4. Genscan predicts INIT, INTR and TERM exons.
  5. Promoter regions are present in the upstream region of the genes.

 

III. Complete the following                                                                              (5 x 1 = 5)

  1. Donor site is the beginning of ________.
  2. ________ is the enzyme for bioluminescence in glow worms.
  3. ________ are the enzymes used to cut DNA sequences.
  4. ________ are used as vectors in cloning.
  5. ________ is the software for visualizing protein structures.

 

  1. Answer the following each within 50 words . (5 x 1 = 5)
  2. What is Splicing ?.
  3. Explain Drought resistance.
  4. Discuss the Importance of CpG island.
  5. What is an atomic coordinate file ?.
  6. Define : exon.

PART B

 Answer any five of the following each in about 350 words. Draw diagrams wherever necessary.                        

                                                                                                                                                (5 x 8 = 40)

  1. Discuss the applications of bioinformatics.
  2. Explain the software for the prediction of post translational modification (glycosylation).
  3. Explain the signalp software in detail.
  4. Discuss any two softwares for the analysis of genomes.
  5. Explain the software for the prediction for transmembrane helix prediction.
  6. Discuss codon usage databases and their applications.
  7. Discuss Netgene 2 and its applications.
  8. Discuss about promoter 2.0 and its output format.

PART C

Answer the following questions in about 1500 words. Draw  diagrams wherever necessary                      

                                                                                                                                                (2 x 20 = 40)

  1. a) Explain gene cloning with Insulin as an example.

OR

  1. Discuss the gene prediction software genscan in detail.

 

  1. a) Discuss the applications of Bioinformatics..

OR

  1. Explain DNA sequencing in detail.

 

 

 

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Loyola College B.Sc. Physics April 2007 Allied Mathematics For Physics Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc.

CV 08

DEGREE EXAMINATION –PHYSICS

THIRD SEMESTER – APRIL 2007

MT 3100 – ALLIED MATHEMATICS FOR PHYSICS

 

 

Date & Time: 28/04/2007 / 9:00 – 12:00        Dept. No.                                                     Max. : 100 Marks

 

 

 

Section A

Answer ALL the questions (10 x 2 =20)

1) Evaluate.

2) Find .

3) Find .

4) If cos5q = Acosq + Bcos3q+ Ccos5q , prove that

sin5q = A sinq -Bsin3q + Csin5q.

5) If  , prove that .

6) If y = e 2x, prove that .

7) Show that in the curve r = e q cot a , the polar subtangent is rtana.

8) Derive the expansion of  .

9) Find the coefficient of  in the series

10) Explain the concept of mutually exclusive events with an example.

 

Section B

Answer any FIVE questions (5 x 8 = 40)

11) Determine a, b, c so that .

12) Find  L[t2 e -t cost].

13) Using Laplace transform solve , given.

14) Prove that  .

15) If , prove that .

16)  Verify Cayley Hamilton theorem for the matrix .

17)  Sum the binomial series  .

 

18)  Assuming that half the population own a two wheeler in a city so that the chance

of an individual  having a two  wheeler is ½  and assuming that 100 investigators

can  take sample of 10 individuals  to see  whether  they own a two wheeler, how

many  investigators  would you expect  to report  that  three  people or  less  were

having two wheelers.?

 

Section  C

Answer any TWO questions only (2 x 20 = 40)

19) Solve , given x(0) = 0: y(0)=2 using Laplace

transform.

20) (a) Find the real and imaginary parts of sin (x+iy) and tan(u + iv).

If , prove that .

(b) If  , prove that .                                  (10+10)

21) a) Find the angle at which the radius vector cuts the curve .

  1. b) A person is  known to hit  target in 3 out  of 4 shots, whereas another person is

known to hit the target 2 out of 3 shots. Find the probability of the targets being

hit at all shots when they both try.

  1. c) A bag contains 5 white  and  3 black balls. Two balls are drawn at random one

after the other without  replacement. Find  the probability that both balls drawn

are black.                                                                                                (10+5+5)

22) a) Find the eigen values and eigen vectors of the matrix

  1. b) Find the first term with a negative coefficient in the expansion of

(15+5)

 

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Loyola College B.Sc. Physics Nov 2007 Materials Science Question Paper PDF Download

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