CDS (II) 2023 · General Knowledge
A full General Knowledge paper in the UPSC CDS pattern: 120 questions in 2 hours, with a third of the question's marks deducted for every wrong answer. Physics, Chemistry, Biology, defence and security, History, Geography, Polity, Economy and current events.
120questions
100marks
2 hoursno calculator
33/59/28easy / medium / hard
Topics in this paper
General Knowledge · 120 questions
- Current events6
- Metals3
- British India3
- Freedom struggle3
- Indian physiography3
- World geography3
- Gases2
- Vitamins2
- Hormones2
- Armed forces ranks2
- Awards2
- Sports events2
- Sports2
- Indian drainage2
Sample question from this paper
Laws of motion · medium
A constant force of 10 N acts for 4 s on a body of mass 5 kg that is initially at rest. The speed of the body at the end of 4 s is
- A. 2 m/s
- B. 20 m/s
- C. 8 m/s
- D. 50 m/s
Show answer and solution
Answer: C
Acceleration is force divided by mass, so a = 10/5 = 2 m/s². Starting from rest, v = a t = 2 x 4 = 8 m/s. Multiplying force by time gives 40 N s, which is the impulse and not the speed; dividing that by the mass is the step that gives the velocity.
Acceleration is force divided by mass, so a = 10/5 = 2 m/s². Starting from rest, v = a t = 2 x 4 = 8 m/s. Multiplying force by time gives 40 N s, which is the impulse and not the speed; dividing that by the mass is the step that gives the velocity.