PYQPulse
HomeMocksPracticePYQsUpdatesDashboard
PYQPulse

Timing-accurate mock tests and PYQs for SSC, Banking and Railway exams — so the real paper feels like a revision.

Exams

  • SSC exams
  • Banking exams
  • Railway exams
  • All exams

Practice

  • Practice questions
  • Mock test series
  • Sectional tests
  • Year-wise PYQs
  • Performance analytics

Company

  • About us
  • Help Centre
  • Pricing
  • Sign in

Legal

  • Privacy Policy
  • Terms of Service

Contact

  • hello@testwala.co.in
  • Telegram
  • +91 62816 87760

Practice interface modeled on the official exam pattern — not the official examination. PYQPulse is not affiliated with the Staff Selection Commission, IBPS, SBI, RBI, NABARD, SEBI or Indian Railways.

© 2026 PYQPulse. All rights reserved.

Built for aspirants, by aspirants.

HomeMocksPracticeStats
  1. Home
  2. ›
  3. PYQs
  4. ›
  5. RRB Junior Engineer / DMS / CMA
  6. ›
  7. 2024
  8. ›
  9. Q153

RRB Junior Engineer / DMS / CMA 2024 · Question 153 of 730

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 lengthCorrect
  3. CWhen the object is placed between centre of curvature and focal point
  4. DWhen the object is placed at the focal point

Answer: B. When the object is placed at twice the focal length

Official answer key verified. Detailed explanation coming soon.

Source: Railway Junior Engineer 2024 Answer Key compilation (English) — testranking.in (Gagan Pratap) · reliable-secondary

← Q152View full paper (730 questions)Q154 →

Practice the full RRB Junior Engineer / DMS / CMA 2024 paper

Timed test with all 730 questions, just like the real exam.

Start test