a) Bresenham’salogorithm b) Midpointalgorithm c) Both (a) and(b) d) None of thea

Question

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) Binarysearch

b)Bubble sort

c) Linearsearch

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.

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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