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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
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
Answer: The net force will not be considered, there would be a net force of the distribution, rest will be the external forces
(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
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
(5)
For equilibrium, the net moment acting on the body by various conservative forces is _____:
[A]
Zero
[B]
Three
[C]
One
[D]
Two
(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
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
(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
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
(10)
What exactly is a conservative force conserving?
[A]
Energy
[B]
Acceleration
[C]
Force
[D]
Velocity
(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
(12)
Electron volt is a unit of
[A]
Energy
[B]
Magnetic Force
[C]
Potential difference
[D]
Charge
(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]
(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
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
(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
(17)
The dimensions of Kinetic energy is same as that of
[A]
Work
[B]
Momentum
[C]
Force
[D]
Pressure
(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
(19)
The dimensional formula for Planck's constant is
[A]
[ML2T-1]
[B]
[M2L2T-1]
[C]
[MLT]
[D]
[ML1T-1]
(20)
Light year is a unit of
[A]
distance
[B]
mass
[C]
sunlight intensity
[D]
time
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