Computer Graphics MCQ - Graphics Concepts

16 Choose the correct answers.
To construct the rectangle ABCD, it is enough if

A
the length and breadth are given
B
the vertices A and B are given
C
the vertex A and the length of the diagonal are given
D
the vertices A and C are given

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Correct AnswerOption D

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17 A raster colour display processor supports a resolution of 1024 x 800 with upto 16 million colours simultaneously displayable. What will be the approximate size (in bytes) of the frame buffer used in the display processor?

A
1.2 x 10⁶
B
2.4 x 10⁶
C
16 x 10⁶
D
10⁵

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Correct AnswerOption B

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18 Choose the incorrect statement from the following about the basic ray tracing technique used in image synthesis.

A
In this technique, rays are cast from the eye point through every pixel on the screen.
B
In this technique, viewing transformations are not applied to the scene prior to rendering.
C
This technique removes hidden surfaces
D
In this technique, rays are cast from the light source to the objects in the scene.

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Correct AnswerOption D

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19 Which of the following devices has a relative origin?

A
Joystick
B
Track ball
C
Mouse
D
None of the above

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Correct AnswerOption C

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20 A surface appearing black

A
reflects all the incident colours
B
reflects all the incident colours except black
C
reflects only black and absorbs the rest
D
reflects none

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Correct AnswerOption D

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