Question 63Asked in UGC NET Computer Science, June 2015 (Paper II & III, Selected Questions)

Which of the following statement(s) is/are incorrect? (1) Mapping the co-ordinates of the points and lines that form the picture into the appropriate…

Which of the following statement(s) is/are incorrect? (1) Mapping the co-ordinates of the points and lines that form the picture into the appropriate co-ordinates on the device or workstation is known as viewing transformation (2) The right-handed Cartesian co-ordinates system in whose co-ordinates we describe the picture is known as world co-ordinate system (3) The co-ordinate that corresponds to the device or workstation where the image is to be displayed is known as physical device co-ordinate system (4) Left - handed co-ordinate system in which the display area of the virtual display device corresponds to the unit (1 × 1) square whose lower left-hand corner is at the origin of the co-ordinate system, is known as normalized device co-ordinate system
  1. A(1) only
  2. B(1) and (2)
  3. C(3) only
  4. D(4) only
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Correct answer: (D) (4) only

Explanation

Normalized device co-ordinates describe positions on a virtual plotting device: the lower left corner is (0,0) and the upper right corner is (1,1). NDC is a right-handed system, not left-handed, so statement (4) is incorrect.

From UGC NET Computer Science PYQ, June 2015 (Paper II & III, Selected Questions)

This is question 63 of UGC NET Computer Science PYQ, June 2015 (Paper II & III, Selected Questions). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.