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11 chapters in syllabus order, in English and Hindi.

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  • 11chapters
  • 191quiz questions
  • EN + हिंevery chapter in both

Syllabus

RRB Railway Science, Maths & GK chapters

In the order you should study them.

🚆 11 chapters, in order11 chapters
  1. Light: Mirrors, Lenses and the Human Eye
  2. Chemical Reactions, Acids, Bases and Salts
  3. Life Processes
  4. Statistics and Basic Probability
  5. Reasoning Extensions: Jumbling, Similarities and Differences, Maps, Conclusions and Decision Making
  6. Electricity and Magnetism
  7. Metals, Non-metals and Carbon Compounds
  8. Control, Coordination and Reproduction
  9. Sets and Venn Operations
  10. Heredity
  11. Indian Railways: Organisation, Zones and Recruitment

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Try a real Railway Science, Maths & GK question

A real question from the course. No sign-up needed.

From the chapter: Light: Mirrors, Lenses and the Human Eye

Which mirror is fitted as a rear-view mirror in vehicles, and for what reason?

Show the answer and why

Answer: A.

A convex mirror gives an erect, diminished virtual image for any real object, and the diminished image lets a large area fit in a small mirror. A concave mirror gives a magnified image only at close range and an inverted real image for far objects, so it is not suitable; a plane mirror gives a virtual, not real, image and a narrow field.

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