CDS Exam (I)- 2026 - General Knowledge Defence Question Paper

CDS Previous Year Question Papers Question Papers
CDS Exam (I)- 2026 - General Knowledge

CDS Exam (I)- 2026 - General Knowledge Defence Questions

11.
Which one of the following statements qualitatively explains the second law of motion?
A.
The rate of change of angular momentum of a body is equal to the applied force.
B.
The rate of change of displacement of a body is directly proportional to the applied force.
C.
The rate of change of acceleration of a body is directly proportional to the applied force.
D.
The rate of change of momentum of a body is equal to the applied force.
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ANSWER :
D. The rate of change of momentum of a body is equal to the applied force.
12.
Which one of the following gives the triple point of water?
A.
Temperature 273.16 K and Pressure 1 Pa
B.
Temperature 273.16 K and Pressure \( 6.11 \times 10^{2} \) Pa
C.
Temperature 0 K and Pressure \( 10^{3} \) Pa
D.
Temperature 373 K and Pressure \( 6.11 \times 10^{-3} \) Pa
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ANSWER :
B. Temperature 273.16 K and Pressure \( 6.11 \times 10^{2} \) Pa
13.
Which one among the following has the least coefficient of thermal conductivity?
A.
\( H_{2} \)
B.
\( H_{2}O \)
C.
Cu
D.
Al
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ANSWER :
A. \( H_{2} \)
14.
Which one among the following generation computers used microprocessors in their hardware technology?
A.
Second Generation
B.
Third Generation
C.
Fourth Generation
D.
Fifth Generation
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ANSWER :
C. Fourth Generation
15.
An X-ray beam can be deflected by:
A.
An electric field
B.
A magnetic field
C.
An electric as well as a magnetic field
D.
Neither an electric field nor a magnetic field
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ANSWER :
D. Neither an electric field nor a magnetic field
16.
An object is placed at a distance of 15 cm in front of a concave mirror with a radius of curvature of 20 cm. Which one among the following statements is correct for the image formed?
A.
The image is 30 cm from the mirror on the same side as the object.
B.
The image is formed at a distance of 30 cm behind the mirror.
C.
The image is 60 cm from the mirror on the same side as the object.
D.
The image is formed at a distance of 60 cm behind the mirror.
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ANSWER :
A. The image is 30 cm from the mirror on the same side as the object.
17.
Which one among the following statements regarding the electrical resistivity of a conducting wire is correct?
A.
The resistivity of the conductor increases if the length of the wire is increased.
B.
The resistivity of the conductor decreases if the length of the wire is increased.
C.
The resistivity of the conductor remains the same if the length of the wire is changed.
D.
The resistivity of the conductor increases if the cross-sectional area of the wire is increased.
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ANSWER :
C. The resistivity of the conductor remains the same if the length of the wire is changed.
18.
Which one among the following statements related to electric cells is correct?
A.
A primary cell is rechargeable.
B.
A secondary cell can be used only once.
C.
The emf of a battery is the power provided by the battery per unit current.
D.
The unit of emf is Joule.
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ANSWER :
C. The emf of a battery is the power provided by the battery per unit current.
19.
An object is launched horizontally from a height of 45 m above the ground with a speed of 10 m/s. The time at which the object will hit the ground is: (Take \( g = 10 m/s^{2} \))
A.
6 s
B.
4 s
C.
3 s
D.
2 s
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ANSWER :
C. 3 s
20.
Consider the following statements regarding waves:
1. If the particles of a medium move along the direction of motion of the wave, the wave is called a longitudinal wave.
2. If the particles of a medium move perpendicular to the direction of motion of the wave, the wave is called a transverse wave.
3. Transverse waves may involve change in the shape of the medium, whereas longitudinal waves involve change in the density of the medium.
Which of the statements given above is/are correct?
A.
1 and 2 only
B.
1 only
C.
2 and 3 only
D.
1, 2 and 3
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ANSWER :
D. 1, 2 and 3
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