Question # 1: Select appropriate optionfrom figures according to the relating ch
ID: 3607912 • Letter: Q
Question
Question # 1: Select appropriate optionfrom figures according to the relating choice
(against each term pick from pictureoption)? (marks 4)
TermsOption(Figures)
Specular
Diffuse
Transparent
Translucent
(a)
(b)
(c)
(d)
Question # 2: Select algorithm which canbe used for circle generation?
a) Bresenham’salogorithm
b) Midpointalgorithm
c) Both (a) and(b)
d) None of theabove
Question # 3: A circle drawn on the screenappears to be elliptical
a) Screen has arectangular shape
b) CRT is notcompletely spherical
c) It is due toaspect ratio of monitor
d) Our eyes are notat the same level on screen
Question # 4: Clipping algorithm whichfollows “Divide and ConquerStrategy”
a) Sutherland-Cohenalgorithm
b) 4-bitalgorithm
c) Midpointsubdivision
d) Cyrus-BeckAlgorithm
Question # 5: Which piece of the Phongmodel is responsible for giving spheres their
brightwhite spots?
a)Ambient
b)Diffuse
c)Specular
Question # 6: From following is NOT neededvector for the Phong reflection model?
a) SurfaceNormal
b) Direction toViewer
c) Direction toMaterial Center
d) Direction toLight
Question # 7: (Phong Reflection model) Isambient light is the same all the way?
a) Yes
b) No
Question # 8: Which of the followingtechniques Is used in Midpoint subdivision
algorithm?
a)Binary search
b)Bubblesort
c)Linear search
d)Sequentialsearch
Question # 9: If direction of rotation isZ axis, then direction of position of positive
rotation is
a)YtoZ
b)ZtoX
c) XtoY
d)YtoX.
Question # 10: Select appropriate optionfrom figure according to the relating
choice(against each term pick from picture related option)? (marks3)
TermsOption(Figure)
Reflection
IncidentLight
Refraction
(b)
Explanation / Answer
4. Clipping algorithm which follows“Divide and Conquer Strategy” is Sutherland-Cohen algorithm
5. Specular is responsible for givingspheres bright white spots in Phong model.
6. Direction toMaterial Center is NOT needed vector for the Phongreflection model
7. Yes, the ambient light is the same allthe way.
8. Midpoint subdivision method uses bisectionprocess, which is related to binarysearch.
9. If direction of rotation is Z axis, thendirection of position of positive rotation is ZtoX