# Computer Graphics - Graphics Operations

11:
A cube of side 1 unit is placed such that the origin coincides with one of its vertices and the three axes run along three of its edges. The vertex diagonally opposite to (1, 0, 1) is
 A. (0,0,0) B. (1, 1,0) C. (0,1,1) D. (0, 1,0) Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. Write your comments here:
12:
Let R be the radius of a circle. The angle subtended. by an arc of lengthRat the centre of the circle is
 A. 1 degree B. 1 radian C. 45 degrees D. impossible to determine Answer Report Discuss Option: B Explanation : Length of arc = Length of radius x angle subtended in radians. Click on Discuss to view users comments. Write your comments here:
13:
A rectangle is bound by the lines x = 0; y = 0; x = 5 and y = 3.
The line segment joining (-1, 0) and (4, 5), if clipped against this window will connect the points
 A. (0, 1) and (3,3) B. (0,1) and (2,3) C. (0, 1) and (4, 5) D. none of the above Answer Report Discuss Option: B Explanation : The equation of the line joining (-1, 0) and (4, 5) is x - y + 1 = 0. This cuts the window boundaries x = 0 and y = 3 at the points (0, 1) and (2,3) respectively. Click on Discuss to view users comments. Write your comments here:
14:

A rectangle is bound by the lines x = 0; y = 0; x = 5 and y= 3.
The line segment joining (1, 1) and (4, 2) if clipped against this window will connect the points

 A. (0, 1) and (3, 3) B. (0, 1) and (2, 3) C. (1, 1) and (4,2) D. none of the above Answer Report Discuss Option: C Explanation : A point (x, y) will be inside the window, if 0 < x < 5 and 0 < y < 3. So, the points (1, 1) and (4, 2), both lie within the window. So, it is already clipped Click on Discuss to view users comments. Write your comments here:
15:

A rectangle is bound by the lines x = 0; y = 0; x = 5 and y = 3
The line 2x - y + 4 = 0, if clipped against this window will connect the points

 A. (0, 1) and (3,3) B. (0, 1) and (2, 3) C. (1,2) and (3, 4) D. none of the above Answer Report Discuss Option: D Explanation : This line cuts the x-axis at (-2,0) andy-axis at (0,4). So, it lies totally outside the window and so cannot be clipped. Click on Discuss to view users comments. Write your comments here: