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Free download in PDF CBSE Class 11 Physics Multiple Choice Questions(MCQs) & Answers. Here Gkseries provide Physics Solve Questions and Answers for CBSE Class 11 Students.
1
A conservative force is dependent only on :
A
Position of the objects
B
Position of the forces
C
Position of the path taken
D
None of the above
View Answer
Answer: Position of the objects
2
If any external conservative force also is applied on the distributed loading then?
A
The net force will act at the centroid of the structure only
B
The net load will not be formed as all the forces will be canceled
C
The net force will act on the base of the loading horizontally
D
The net force will not be considered, there would be a net force of the distribution, rest will be the external forces
View Answer
Answer: The net force will not be considered, there would be a net force of the distribution, rest will be the external forces
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3
What does Newton’s third law states for the conservative forces?
A
The rate of change of momentum is equal to the force applied
B
For every reaction, there is an opposite reaction
C
The body tends to be rotated if the force is applied tangentially
D
The body is rest until a force is applied
View Answer
Answer: For every reaction, there is an opposite reaction
4
The conservative frictional force always acts ____________ to the surface of the application of the friction.
A
Tangential
B
Parallel
C
Perpendicular
D
Normal
View Answer
5
For equilibrium, the net moment acting on the body by various conservative forces is _____:
A
Zero
B
Three
C
One
D
Two
View Answer
6
Which of the following types of force can do no work on the particle on which it acts?
A
Centripetal force
B
Elastic force
C
Gravitational force
D
Frictional force
View Answer
Answer: Centripetal force
7
When a force is parallel to the direction of motion of the body, then work done on the body is.
A
maximum
B
infinity
C
zero
D
minimum
View Answer
8
A field in which the work is done in a moving body along a closed path is zero is called.
A
Conservative field
B
Electromagnetic field
C
Electric field
D
None of the above
View Answer
Answer: Conservative field
9
The force that is not one of the conservative forces is
A
elastic spring force
B
gravitational force
C
frictional force
D
electric force
View Answer
10
What exactly is a conservative force conserving?
A
Energy
B
Acceleration
C
Force
D
Velocity
View Answer
11
There are 20 divisions in 4 cm of the main scale. The vernier scale has 10 divisions. The least count of the instrument is
A
0.005 cm
B
5.0 cm
C
0.5 cm
D
0.05 cm
View Answer
12
Electron volt is a unit of
A
Energy
B
Magnetic Force
C
Potential difference
D
Charge
View Answer
13
The equation of state of some gases can be expressed as Vander wal equation i.e.
(P + a/v2)(V - b) = RT
Where P is the pressure, V is the volume, T is the absolute temperature and a, b, R are
constants. The dimensions of ‘a’ are:
A
[M1L1T-1]
B
[M1L-5T1]
C
[M2L5T-1]
D
[M1L5T-2]
View Answer
14
Which of the following pairs has the same dimensions?
A
Moment of Inertia and Torque
B
Specific Heat and Latent Heat
C
Surface Tension and Force
D
Impulse and Momentum
View Answer
Answer: Impulse and Momentum
15
One watt hour contains how many joules?
A
3.6 ✕ 103 J
B
10-3 J
C
3.6 ✕ 102 J
D
3.6 ✕ 108 J
View Answer
16
At 4° C, the density of water is equal to
A
103 kg m-3
B
10 kg m-3
C
10-3 kg m-3
D
10-2 kg m-3
View Answer
17
The dimensions of Kinetic energy is same as that of
A
Work
B
Momentum
C
Force
D
Pressure
View Answer
18
The surface tension of a liquid is 70 dyne/cm. In MKS system its value is?
A
7 ✕ 103 N/m
B
70 N/m
C
7 ✕ 10-2 N/m
D
7 ✕ 102 N/m
View Answer
19
The dimensional formula for Planck's constant is
A
[ML2T-1]
B
[M2L2T-1]
C
[MLT]
D
[ML1T-1]
View Answer
20
Light year is a unit of
A
distance
B
mass
C
sunlight intensity
D
time
View Answer
