MCQs of Advance topics (Computer Graphics - 3150712)

Computer Graphics (3150712) MCQs

MCQs of Advance topics

Showing 11 to 20 out of 36 Questions

11.

Find the odd man out.

(a)	Basic illumination models
(b)	Shading model
(c)	Colour model
(d)	Lighting model

12.

A simple way to model the combination of light reflection from various surfaces to produce a uniform illumination is called :

(a)	Ambient light
(b)	Reflected light
(c)	Background light
(d)	A and C both

13.

When some intensity of light is falling on the object surface and that surface reflects light in all the direction in equal amount then the resulting reflection is called :

(a)	Directional reflection
(b)	Diffuse reflection
(c)	Specular reflection
(d)	A and C both

14.

Amount of reflected light depends on the parameter ________, which is depending on reflecting property of the surface.

(a)	Diffuse reflection coefficient
(b)	Diffuse reflectivity
(c)	A and B both
(d)	None of these

15.

Diffuse reflection from a source are scattered with equal intensity in all directions, independent of the viewing direction such a surface are called :

(a)	Ideal diffuse reflector
(b)	Specular reflector
(c)	Lambertian reflector
(d)	A and C both

16.

Which is the correct equation of diffuse reflection?

(a)	$I_{d i f f} = K_{a} I_{a} + K_{d} I_{l} (N \times L)$
(b)	$I_{d i f f} = K_{a} I_{a} + K_{d} I_{l} (N \cdot L)$
(c)	$I_{d i f f} = K_{a} I_{a} - K_{d} I_{l} (N \cdot L)$
(d)	$I_{d i f f} = K_{a} I_{a} - K_{d} I_{l} (N \times L)$

17.

When we look at an illuminated shiny surface, such as polished metal we see a highlight, or bright spot, at certain viewing directions. This phenomenon is called :

(a)	Directional reflection
(b)	Diffuse reflection
(c)	Specular reflection
(d)	A and C both

18.

Total or near total reflection of the incident light in a concentrated region around the _______.

(a)	specular reflection angle
(b)	diffuse reflection angle
(c)	directional reflection angle
(d)	incident angle

19.

The shiny surface has _____.

(a)	narrow specular reflection range
(b)	wide specular reflection range
(c)	medium specular reflection range
(d)	None of these

20.

In phong model, for dull surface assigned _______ to specular reflection parameter.

(a)	large value nearly 100
(b)	small value nearly 1
(c)	medium value nearly 50
(d)	None of these

Showing 11 to 20 out of 36 Questions