### Objective Type Questions On Computer Graphics - Set 2

Following are the Multiple Choice Questions On Computer Graphics based on the UGC-NET, TET Exams and other competitive exams.

1) Hue of color is related to ?
1. Luminance
2. Saturation
3. Incandescence
4. Wavelength
Explanation: A hue refers to the gradation of color within the optical spectrum, or visible spectrum, of light. "Hue" may also refer to a particular color within this spectrum, as defined by its dominant wavelength, or the central tendency of its combined wavelengths. For example, a light wave with a central tendency within 565-590 nm will be yellow.
2) The phenomenon of having a continuous glow of a beam on the screen even after it is removed is called as ?
1. Fluorescence
2. Persistence
3. Phosphorescence
4. Incandescence
Explanation: No Explanation

3) The line 2x-y+4=0, if clipped against this window will connect the points ?
1. (0, 1) and (3, 3)
2. (0, 1) and (2, 3)
3. (1, 2) and (4, 2)
4. None of above
Explanation: No Explanation
4)Reflection of a point about x-axis, followed by a counter-clockwise rotation of 900 , is equivalent to reflection about the line ?
1. x = -y
2. y = - x
3. x = y
4. x + y = 1
Explanation: No Explanation
5) The best hidden surface removal method used for complex scenes with more than a few thousand surfaces is ?
1. depth sorting method
2. scan line algorithm
3. depth buffer algorithm
4. octree method
5. C and D
Explanation: No Explanation
6) The point at which a set of projected parallel lines appear to coverage is called as a ?
1. convergence point
2. vanishing point
3. point of illusion
4. point of delusion
Explanation: No Explanation
7) The basic element of a picture in volume graphics is ?
1. pixel
2. volsel
3. voxel
4. None of above
Explanation: No Explanation
8) Let R be the radius of a circle. The angle subtended by an arc of length R at the center of the circle is ?
1. 1 degree
3. 45 degree
4. impossible to determine
Explanation: No Explanation
9) A bilinear transformation can be simulated by the transformation ?
1. transformation, rotation and stretching
2. translation and rotation
3. rotation, stretching and inversion
4. rotation, stretching, inversion and translation
Explanation: No Explanation

10) A circle, if scaled only in one direction becomes a ?
1. parabola
2. hyperbola
3. ellipse
4. remains a circle