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  9. Q20

RRB Group D (Level-1 posts) 2026 · Question 20 of 95

The distance between the pole and focus of a concave mirror is 30 cm. A real and inverted image is formed by this mirror on a screen at 40 cm from the pole of this mirror. What will be the object distance?

  1. A- 120/7 cm
  2. B+ 120/7 cm
  3. C- 120 cmCorrect
  4. D+ 120 cm Click to Join Telegram Railway News Room

Answer: C. - 120 cm

Official answer key verified. Detailed explanation coming soon.

Source: RRB Group D 2025 question paper and answer key PDF English Feb 9 2026 Shift 2 · official-answer-key

← Q19View full paper (95 questions)Q21 →

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