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Computer Graphics
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Course Name
BSc IT (Bachelor of Science in Information Technology)
Subject Code BT9301 (Computer Graphics )
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PART - A
PART - B
PART - C
Subject : Computer Graphics
BT9301 : PART - C
| Q. 1 | Consider the DDA algorithm. Consider the
line from (0, 0) to (-8, -4) in the third quadrant
then value of length = _______, dx = ______
and dy = ______ |
| | A) | -4, 1, -0.5 |
| B) | .4, 1, 0.5 | | C) | -8, -1, 0.5 | | D) | 8, -1, -0.5 | | | | | Q. 2 | Consider the line (0, 0) to 5, 5)
Rasterizing the line with the Bresenham’s
algorithms
yields initial calculations dx = ______dy = ____
and e = ____ |
| | A) | 5. 0 -0.5 |
| B) | 5, 5, 0.5 | | C) | 5, 5 -0.5 | | D) | -0, 5, 0.5 | | | | | Q. 3 | State True or False for raster-scan CRT
a. An electron gun consists of a heater and a
cathode
b. Control electrode is used to regulate the flow
of electrons
c. Focusing electrode is used to control the
direction of electron beam |
| | A) | a-T, b-T, c-F, d-F, e-F |
| B) | a-I, b-F, c-T, d-T, e-F | | C) | a-F, b-I, c-F, d-F, e-T | | D) | a-I, b-F, c-F, d-I, e-T | | | | | Q. 4 | Select the points true for two dimensions
graphics transformation
a. If the displacement of a object p(x, y) is
given by the vector V=t + t. , then new object
co-ordinates are x+t and y+ty
b. In a scaling transformation, only origin |
| | A) | a, b, c, d, e |
| B) | a, b, c, d | | C) | c, e | | D) | b, d, e | | | | | Q. 5 | Match the following:
Set – A
i) The farther an object is from the center of
projection, the smaller it appears
ii) Object behind the center of projection are
projected upside down
iii) A finite line segment joining a point which |
| | A) | i)-3, ii)-4, iii)-2 |
| B) | i)-4, ii)-1, iii)-2 | | C) | i)-2, ii)-3, iii)-4 | | D) | i)-3, ii)-1, iii)-4 | | | |
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