Question 19Asked in RRB JE CBT-1, 20 Feb 2026, Shift 2 (12:45 PM)

A security mirror in a store is required to provide a wide field of view and always form

A security mirror in a store is required to provide a wide field of view and always form diminished, upright images regardless of the position of objects. Which type of mirror and principle should be used for its design?
  1. APlane mirror for undistorted images
  2. BConcave mirror using the mirror formula for real, inverted images
  3. CConcave mirror for magnification
  4. DConvex mirror using the mirror formula for virtual, diminished images
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Correct answer: (D) Convex mirror using the mirror formula for virtual, diminished images

From RRB JE CBT-1 PYQ 20 Feb 2026, Shift 2 (12:45 PM)

This is question 19 of RRB JE CBT-1 PYQ 20 Feb 2026, Shift 2 (12:45 PM). 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.