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Question 70Asked in RRB JE CBT-1, 16 Dec 2024, Shift 3 (4:30 PM)

In which case will a lens produce a magnification of exactly 1?

  1. AWhen the object is at infinity
  2. BWhen the object is placed at twice the focal length
  3. CWhen the object is placed between centre of curvature and focal point
  4. DWhen the object is placed at the focal point
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Correct answer: (B) When the object is placed at twice the focal length

From RRB JE CBT-1 PYQ 16 Dec 2024, Shift 3 (4:30 PM)

This is question 70 of RRB JE CBT-1 PYQ 16 Dec 2024, 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.