WIPRO 2000 CS

Wipro...2000 ------------

1.x ray wave ?
a-monochromatic b-having many wavelengths a limit c- without limit

2.maths: lim x tends to infinity,numerator:
intigral zero to infinityA(int0toinf) e power x .dxdenominator:int0toinf e power 2.x.pow(2) .dx
a-0 b-5 c-4 d-none

3.xsquare-3x-a=0 find the value of a ..is in bet[0,1]
a.-1 b.1 c. d.none

4.x=sininverse t,y=log(1-tsquare)find dsquarey/dsquaret at t=1/2 ans.-8/3

5.lim x->0 cos(1-cosx)/x power 2ans. none of these

6.a question paper has two sections of 5 questions each total 10 que to beanswered only at most 4 q has to be answered from each section.in how many ways this can be done.

7.a rod and man are parallel and rod length of rod=l when rod movedparallel the length of rod measured and when man moved parallel to the rodsame destnce the rod length easured
a.equal b. notequal c.cant say d.none
8.a train at stationary a radio active elt emits alpha particle and is atdistance x after a time t .now the train is moving at a speed v then thedistance between alpha and radio active substance....

9.1+2(1+1/n)+3(1-1/n)square ...aum of n terms
a.n(n+1) b.n(n-1) c.n d.nome

10.1)x pow 3-1=02)x pow 2-1=0the value of x can be decideda,by state
a.1 only b.2only c.both. d.neither

11.1)a pole height =18ft 2) a man is standing at 12 ftand the height is 6 ft caluclatethe shadow heighta.
statement 1is sufficient b.2 is suff c.both d.neither

12.two trains are start a and b points and both travell in opp to otherdest b and a.which train is moving fasterc station is nearer to a and both trains meet at that pointa

a.1 train is faster b.2nd fast c.we cant tell d. none

13.a speaks 70%truth,b 80%,if a nd b contradict each other what is theprobability ns>.7*.2+.8*.3

14.in a party ABC are there along with 5 members A speaks before B and Bspeaks before C if all are speakers what is the probability A willspeaks first similarly B compared to C

15.two 1 coloumb forces are placed at .5 m distance the force exerted..ans>9*10pow 9 N
16.integral((2*x-3)/(x square+x+1)dx)=?

,'''''''''''''''''''''''''''''''''''''''''''''''' WIPRO WIPRO WIPRO ''''''''''''''''''''''''''''''''''''''''''''''''''
1)two elements have same atomic no. and same atomic mass.,they arecalled
2) a qn. about isomerism.
3) in a comp. carbon(40%),hydrogen(6.7%),oxygen(53.3%),what is itsome of the ans. given..CH2O,CH3O,C2H2O2(make use of emperical form
4)one of the following s not ideal solution.ans given are..ethanol+water,phenol+benzene
5)P1V1 comp. is inc. to P2V2 with q heat change,w work change which of thefollowing remains const.ans given are w,q,w+q,q-w
6)what is the period of [1/2 sin(2t+1)]/PI,here PI stands for math. symb
7)a paper consists of two sections with 5 qns each,what is the probabilityof answering 6 qns. selecting a maximum of only 4 qns. from any of thesections
8)one of the qns. in sol. of diff. eqns.Y dx- X dy=Y tanx dy.....ans. may be Ycos x=x(two such qns. were asked of such type
9)lt x->infinity integration(with limits 0 to x) a fraction with numeratoras square of([e power x]-1) and denom. as square of ([e power 2(sq. ofx)]-1
10)integrate a fraction with nr. as (2x+3)and dr. as square of(sq(x)+x+1
11)A will be truth with prob. 0.7 and B with 0.8,what is their prob. ofconflicting...?.
12)2 circles have same radii,what is the no. of intersecting points
13)if y=log t and x=inv(sin t),find second differential of y w.r.t x. at t=0.5. 14)if the wave length from x-ray tube is lambda,then that lda. isa)>monochromatic b)atmost max. c)atmost min. d)between min. and max
15)a group consists of X,Y,Z and other group A,B,C,D. X has differenceswith A,A has diff. with B and Z has diff. with C.if a group is to be sent to awork with min. 2 persons from each group with cooperative members,and ifthat group has one member A, who are remaining mambers,similarly if onemember is B who are other
16)How can 7 objects be distributed among three persons.
a)7C3 b)7P3 c)3 power 7d)7 power 3

17)Trees give woods,all dogs are trees for above statement to be true
1)dogs give woods 2)woods used for fuel.a)1 is correct b)2 is correct c)both d) none
---------------------------------------------------------------------------
18)a summation series numerator sigma(2n+1) ,denom. sigma(n sqr.)
----------------------------------------------------------------------------
19)a summation series 1+2(1+1/n)+3 sqr.(1+1/n)+4 cube(1+1/n)....=?
-----------------------------------------------------------------------------
20)cube(x)+2x+a has two roots 1 and 0,find a.
-------------------------------------------------------------------------------
21)if temp. of two areas atr 20 deg. and 40 deg. their surface areas willbe in the ratio.------------------------------------------------------------------------------
22)station C is in between A and B.if two trains start from A and B which is true 1)they will meet at C 2)C is near to A
--------------------------------------------------------------------------
23)in the following two series 17,21,25... and 16,21,26.... find the sum of common numbers up to 100 terms. ans. may be...101100.
-----------------------------------------------------------------------------
24)Two persons choose a number between 1 and 25,what is the prob. of theirchoosing same number. ans. may be 48/125.
-----------------------------------------------------------------------------
TECHNICAL ------------
1)unit of reluctance.------------------------------------------------------------------------2)some problems relating to following areas. a)relation between inductance,no. of turns,and current.
b)relation between flux,current and torque.
c)biotsawart law,amperes law,lenz law
d)relation between work done,force,torque.
e)relation between flux,lumination,lux.
f)error in power 1 % ,error in current 1.5 % what is error in resistance ..ans may be +-4 %.
One prob. was given like a person starts from one place goes to norththen south.........one has to find the distance from original place. Some qns. were also asked in data structures,c.




_________________________________________________________________
//computerscience(software)

1.virtual classes in c++ are? ans:a
2.left recursive grammar is given(we have to do elimination)ans:d
3.In rond robin(RR) scheduling if time quantum is too large it degenrates to ans:fcfs
4.worst case &Best case is nlogn for?ans:heap sort
5.Assignment operator targetans:L-value
6.Translation scheme isans:syntax directed translation
7.Given graph find essentricity
8.Network schema?(DBMS)
9.Given exp in infix, convert to Postfix.//General1.A man goes first north 2km,takes rightans:First right turn-eastb.Dist between starting &end -2km.

2.Themodynamics-p1v1,p2v2ans:Delta Q3.Questions -probability(permutations&combinations)-3 questions4.sum of n-terms 1+x+........(type)

5.Atomic & mass number samea.isotopes b.isomars........6.ideal solution is?7.cl2+tolune gives