University of Delhi 2010-2nd Year M.Tech Information Technology 1st nd nuclear & computational science UNIVERSITY - Question Paper
This question paper con tarns 3 printed pages
70,8 Yout Roll No
M Tech /IlScm.
NUCLEAR SCIENCE & TECHNOLOGY Paper :NST - 609 : Nuclear & Computational Science
1 J
Time 3 hours Maximum Marks 70
(Wntc youi Roll No on the top immediately on icceipt of this question paper) Question No 1 is compulsory Answer any /our questions out of the rest
1)
a) Is this a valid programme'? Why or why not9 2
# include < tostream >
mt mam () std cout"Hello, world1" std endl,
b) Will this programe compile successfully7 Why or why not7 2
H include < lostream > int m?m ()
{
/* this is a comment that extends o\cr sevseral lines bccuase it uses */ and */ as its starting and ending delimeters */ std cout"Docs this compile7" std endl, return 0
}
c) i he average binding energy per nucleon of the nuclei is about 8 MeV Deuteron 2 binding energy is only about 2 224 MeV but it is still stable Give icason for the stability of the deuteron
d) Using neutron (n) and proton (p) combination, three bound states nn, np & pp can be 2 formed Out of these only np bound state is stable and exists Why not the other two bound states are stable
e) Arrange the following operators by precedence from highest to lowest 3 \y, x=y, x--, x/y, + *-x, =- v
f) Determine if actinium ~ 225 can dccay through a as well as (3 decay or not7 3
g) Write a C++ program to test whether a given number is prime or not 4
h) I he ground state of1 '7 y, Ba has spm-panty of 3/2" 1 he first two excited states 4 have spin parity 1/24 & 11/2' According to the shell model, what assignments
would be expected for these excited states
2)
a) Write a (>t + progiam that asks the users to enter two numbers and tells the usei 3 which number is larger than the other
b) Is the following program valid7 If so, what does it do7
If not, say why not, and rewrite it to be valid include <iostream>
# include <stnng> int mainO
std string s= "a string", std stnng x = s+", really1', std cout s std endl, std . cout x std endl, return 0,
c) Write a C++ program to find the real root of (x+1 using Secant method
a) Write a C++ program to generate the product of the number m the range [1,10)
b) Write a C++ program to calculate the relativistic mass and speed of an electron accelerated in an electron gun
a) if deutron had excited states, then what would be the minimum potential for the first excited state (I = 1)
b) What is the significance of scattering length? What information sign of the scattering length provides about the system
c) Predict the ground state spins, parties and magnetic moments of the following nuclie using the shell model
lie. ?\iNa YCl, '>Ca
a) Ground state of deutron is a mixture of S & D state but not a mixture of S & P or F state Why9
b) Consider the reaction n+:%U Nl,3a l\Kr - In
calculate the energy released m mev m the reaction
[Atomic masses 3\U - 235 04191 u, ,4\tBa - MO 9l39u Yfckr- 91 8973uj
c) We know that deutron system is an admixture of 3Si & 3D* states Calculate the countribuition of 3Dt state to the deuteron ground state on the basis of magnetic dipole
moment discupancy between the therotical and experimental values Given j.in = -1 913n j.ip - 2 793}.tn (e\pt) 0 857438
a) Are the following definition valid? Why9 Why not9 Const std string exclam = ,,f',
Const std string message - "is this" + "valid" + exclam,
b) In the shell model, a spin orbit interaction splits all energy levels except the s-type levels Why does the s-type levels remains unspht9
c) Write a C++ program to countdown from 10 to -5
d) Which of the following nucleon - nucleon scattering is easiest to carry out experimentally9 Give reasons9
n - p, p-n, n-n, p-p
How can you use nucleon-nucleon scattering to show that the nuclear forces are charge independent9
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