Computer Graphics MCQs with Answers
Practice important Computer Graphics MCQs with answers and explanations.
Chapter: 6
Q161:
The first point plotted in Midpoint Circle Algorithm is:
A. (0, r)
B. (r, r)
C. (r, 0)
D. (0, 0)
Correct Answer:
C
Chapter: 6
Q162:
The symmetry in the circle can help reduce:
A. Pixels
B. Distance
C. Calculations
D. Scanline
Correct Answer:
B
Chapter: 7
Q163:
What is the standard definition of an ellipse?
A. A curve where the product of distances from two points is constant
B. A curve where the difference of distances from two foci is constant
C. A curve where the sum of distances from two fixed points is constant
D. A circular path around two centers
Correct Answer:
C
Chapter: 7
Q164:
In the equation r₁ + r₂ = 2a, what does 'a' represent?
A. Semi-minor axis
B. Distance between foci
C. Radius
D. Semi-major axis
Correct Answer:
D
Chapter: 7
Q165:
The ellipse was named by
A. Kepler
B. Apollonius
C. Halley
D. Menaechmus
Correct Answer:
B
Chapter: 7
Q166:
Who first believed the orbit of Mars was oval?
A. Pappus
B. Newton
C. Halley
D. Kepler
Correct Answer:
D
Chapter: 7
Q167:
What term was introduced by Kepler in 1609?
A. Ellipse
B. Orbit
C. Focus
D. Directrix
Correct Answer:
C
Chapter: 7
Q168:
Halley showed that his named comet moves in a(n) ______ orbit around the Sun.
A. Circular
B. Linear
C. Elliptical
D. Parabolic
Correct Answer:
C
Chapter: 7
Q169:
An ellipse rotated about its minor axis forms a(n)
A. Sphere
B. Oblate spheroid
C. Paraboloid
D. Prolate spheroid
Correct Answer:
B
Chapter: 7
Q170:
What type of spheroid results from rotating an ellipse about its major axis?
A. Ellipsoid
B. Prolate spheroid
C. Oblate spheroid
D. Hyperboloid
Correct Answer:
B
Chapter: 7
Q171:
What are the coordinates of foci in a standard ellipse centered at origin?
A. (a, b) and (-a, -b)
B. (0, c) and (0, -c)
C. (-c, 0) and (c, 0)
D. (c, c) and (-c, -c)
Correct Answer:
C
Chapter: 7
Q172:
What does 'b' represent in an ellipse equation?
A. Radius
B. Base
C. Semi-major axis
D. Semi-minor axis
Correct Answer:
D
Chapter: 7
Q173:
The relation between a, b, and c in ellipse is:
A. a² = b² + c²
B. a² = b² - c²
C. b² = a² + c²
D. c² = a² - b²
Correct Answer:
A
Chapter: 7
Q174:
If an ellipse is centered at (x₀, y₀), the equation becomes
A. Shifted in x only
B. Shifted in y only
C. Shifted in both x and y
D. Unchanged
Correct Answer:
C
Chapter: 7
Q175:
The parametric equation x = xc + rx cos θ represents
A. x in rectangular coordinates
B. x in polar coordinates
C. Radius
D. Directrix
Correct Answer:
B
Chapter: 7
Q176:
The equation x = xc + rx cos θ and y = yc + ry sin θ is used in which method?
A. Midpoint line drawing
B. Parametric ellipse drawing
C. DDA
D. Bresenham’s algorithm
Correct Answer:
B
Chapter: 7
Q177:
The midpoint ellipse function is defined as ______.
A. rx²y + ry²x – 1
B. ry²x² + rx²y² – rx²ry²
C. rx² + ry² – 2x
D. rx² + ry² – x²y²
Correct Answer:
B
Chapter: 7
Q178:
f_ellipse(x,y) > 0 means the point is
A. Inside the boundary
B. On the boundary
C. Outside the boundary
D. At the origin
Correct Answer:
C
Chapter: 7
Q179:
In region 1 of midpoint ellipse algorithm, which direction is sampled?
A. y-direction
B. x-direction
C. both x and y
D. diagonal
Correct Answer:
B
Chapter: 7
Q180:
In region 2 of midpoint ellipse algorithm, which direction is sampled?
A. x-direction
B. diagonal
C. y-direction
D. both
Correct Answer:
C