Question # 1: Selectappropriate option from figures according to the relatingcho

Question

Question # 1: Selectappropriate option from figures according to the relatingchoice
(against each term pick from picture option)? (marks 4)

a) Bresenham’salogorithm
b) Midpoint algorithm
c) Both (a) and (b)
d) None of the above

Question # 3: A circle drawn on the screen appears to beelliptical

a) Screen has arectangular shape
b) CRT is not completely spherical
c) It is due to aspect ratio of monitor
d) Our eyes are not at the same level on screen

Question # 4: Clipping algorithm which follows “Divide andConquer Strategy”

a) Sutherland-Cohenalgorithm
b) 4-bit algorithm
c) Midpoint subdivision
d) Cyrus-Beck Algorithm

Question # 5: Which piece of the Phong model is responsible forgiving spheres their
bright white spots?

a) Ambient
b) Diffuse
c) Specular

Question # 6: From following is NOT needed vector for the Phongreflection model?

a) Surface Normal
b) Direction to Viewer
c) Direction to Material Center
d) Direction to Light

Question # 7: (Phong Reflection model) Is ambient light is the sameall the way?

a) Yes
b) No

Question # 8: Which of the following techniques Is used in Midpointsubdivision
algorithm?

a) Binary search
b) Bubble sort
c) Linear search
d) Sequential search

Question # 9: If direction of rotation is Z axis, then direction ofposition of positive
rotation is

a) YtoZ
b) ZtoX
c) XtoY
d) YtoX.

Explanation / Answer

1)      d , c, a , b  respectively 2)      c) Both (a) and (b) 3)     b) CRT is not completelyspherical 4)      a) Sutherland-Cohenalgorithm
5)      ambient 6)      a) Surface Normal
7)      No/false 8)     Binary search 9)     X TO Y 10)   a,c,b

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