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If two pure reflections about a line passing through the origin are applied...

Q.  
If two pure reflections about a line passing through the origin are applied successively the result is


Answer & Explanation

As, due to two successive reflection about origin object get return to its original position. Therefor it is Pure rotation.

Thus correct option is: A.

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More Questions CAD, CAM, and Automation:

Q.  
What is the determinant of the pure reflection matrix?

A. 1

B. 0

C. -1

D. 2


Answer & Explanation

Q.  
Which of the following represents shearing?

A. (x, y) --> (x+shx, y+shy)

B. (x, y) --> (ax, by)

C. (x, y) --> (x cos(θ)+y sin(θ), -x sin(θ)+y cos(θ))

D. (x, y) --> (x+shy, y+shx)


Answer & Explanation

Q.  
If a ‘3 x 3’ matrix shears in Y direction, how many elements of it are ‘0’?

A. 2

B. 3

C. 6

D. 5


Answer & Explanation

Q.  
Shearing is also termed as

A. Selecting

B. Sorting

C. Scaling

D. Skewing


Answer & Explanation
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