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Question 19Asked in RRB ALP CBT-1, 17 Feb 2026, Shift 2 (12:30 PM)

The distance between the pole and the principal focus of a spherical mirror is called:

  1. AFocal length
  2. BMagnification
  3. CRadius of curvature
  4. DAperture
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Correct answer: (A) Focal length

From RRB ALP CBT-1 PYQ 17 Feb 2026, Shift 2 (12:30 PM)

This is question 19 of RRB ALP CBT-1 PYQ 17 Feb 2026, Shift 2 (12:30 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.