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Question 98Asked in RRB JE CBT-1, 25 Feb 2026, Shift 3 (4:30 PM)

What is the sign of the focal length for a convex lens as per the sign convention for

What is the sign of the focal length for a convex lens as per the sign convention for spherical lenses?
  1. AZero
  2. BVariable
  3. CNegative
  4. DPositive
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Correct answer: (D) Positive

From RRB JE CBT-1 PYQ 25 Feb 2026, Shift 3 (4:30 PM)

This is question 98 of RRB JE CBT-1 PYQ 25 Feb 2026, Shift 3 (4:30 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.