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Computer Graphics MCQ - Graphics Operations

1 The point (4, 1) undergoes the following 3 transformations successively.
I. Reflection about the line y = x
II. Translation through a distance of 2 units along the positive x-axis
III. Rotation through an angle of 7d4 about the origin in the counter clockwise direction.
The final position of the point will be

2 The perspective anomaly in which the object behind the centre of projection is projected upside down and backward onto the view plane is called as

3 A frame buffer array is addressed in row-major order for a monitor with co-ordinate locations varying from (0, 0) to (100, 100). Assuming that one bit of storage is required per pixel and address of(0, 0) is 0000, the address of the co-ordinate position (5,10) is given by

ADDRESS (x,y) = ADDRESS(0,0) + y((x-max) + 1) + x

4 In multiple transformation, which of the following are commutative?

5 Let the maximum number of pixels in a line be M. The number of subdivisions at most necessary using the mid-point subdivision method of clipping is

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Question:

(2,4) is a point on a circle that has centre at the origin. Which of the following point(s) is/are also on the circle?

A. (2, -4)
B. (-2, 4)
C. (4, -2)
D. All of these

Correct answer: D

Explanation:

Since the circle with centre at the origin, is symmetric about the X-axis, Y-axis, the line X = Y and the line X = - Y, the reflection…

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