West Bengal Institute of Technology (WBIT) 2007 M.C.A Computer Aplications graphics - Question Paper

CS/MCA/SEM-4/MCA-402/09

ENGINEERING & MANAGEMENT exam 2009
COMPUTER GRAPHICS AND MULTIMEDIA
SEMESTER - 4

[Time: three Hours] [Full Marks: 70]

GROUP-A
(Multiple option Questions)

1. select the accurate ans from the provided alternatives:

i)Transpose of a matrix A=[a1 b1 c1]
[a2 b2 c2] is:
a) [a1 a2] b) [a1 b1]
[b1 b2] [a2 b2]
[c1 c2] [c1 c2]

c) [a1 c1] d) [a1 a2]
[a2 c2] [c1 c2]
[b1 b2] [b1 b2]

ii) Lambert’s cosine legal regulations is described by
a) Lbett = I1 Kd cos? b) Idiff = I1 Kd cos?
c) Ibett = I1 Kd sin ? d) Idiff = I1 Kd sin?

iii) Convex polygon mean
a) Opposite of concave polygon b) identical as concave polygon
c) All a and b d) none

iv) The parametric formula of a line within P1 and P2 is
a) P=P2+(P1-P2)t b) P=P2+(P2-P1)t
c) P=P1+(P2-P1)t d) NONE

v) The value of t varies ranging from
a) t<=0 b) 0<=t<=1
c) t>=0 d) none

vi) Boundary condition matrix is represented as:
a) [B]=[P1 ] b) [B]= [P0 ]
[P2 ] [P1]
[P1’] [P2]
[P’2] [P3]



c) [B] = [P1 ] d) [B] = [P0 ]
[P2 ] [P1]
[P3] [P1’]
[P4] [P2]

vii) Hermite blending function is
a) F1(t),F2(t),F3(t),F4(t) b) P1(t),P2(t),P3(t),P4(t)
c) all the above d) none of the above

viii) A triangle is described by [2 four 4]
[2 two 4]
obtain the transformed co ordinate after the subsequent transformation---
Reflection about line y = - x
a) [-2 -4 -4] b) [2 -4 -4]
[ two two -4] [-2 two -4]

Earning:   Approval pending.