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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
If 2.2 kilowatt power is transmitted through 1 10 ohm line at 22000 volt, the power loss in the form of heat will be
Choose an answer
0.1 watt
1 watt
10 watt
100 watt
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Question # 2
The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:
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f
2 f
3 f
1/2 f
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Question # 3
Which one is not produced by sound waves in air?
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Polarization
Diffraction
Refraction
Reflection
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Question # 4
Examples of moderators used in a fission reactor is/are:
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Water
Heavy water
Carbon
Hydrocarbon
All of these
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Question # 5
For a moving body, at any instant of time
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If the body is not moving the acceleration is necessarily zero
If the body is slowing, the retardation is negative
If the body is slowing, the distance is negative
If displacement, velocity and acceleration at that instant are known, we can find the displacement at any given time in future
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Question # 6
A 60 W bulb operates on 220 V supply. The current flowing through the bulb is
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11/3 A
3 A
3/11 A
6
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Question # 7
In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes
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Four-fold
One-half
One-fourth
Zero
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Question # 8
It is customary represent a current flowing towards the reader by a symbol
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(x)
(+)
(.)
(-)
(
÷)
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Question # 9
The SI unit of flux density is.
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Tesla
Weber
Gaun
Weber/meter
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Question # 10
The photocopying process is called:
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Geography
Sonography
Xerography
Zerography
None of these
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Question # 11
Which of the following material has smaller has life
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uranium
polonium
radium
radian
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Question # 12
For the angle of projection of a projectile for which its maximum height and horizontal range are equal
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50°
45°
60°
76°
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Question # 13
In which of the optical fibres, the propagation of light signal is through continuous refraction?
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multi-mode step index fibre
multi-mode graded index fibre
both of them
none of them
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Question # 14
The magnetic field produced due to the current in a straight wire is proportionalto the :
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Electric current
Conducting material
Length of the wire
Diameter of the wire
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Question # 15
The smallest part of a crystal lattice is called:
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A molecule
An atom
A unit cell
A particle
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Question # 16
First law of thermodynamics tells us that heat energy can be converted into work which is
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Equivalent
Greater
Lower
None of these
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Question # 17
Five equal forces of 10N each are applied at one point and all are lying in one plane.If the angles between them are equal,the resultant force will be:
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Zero
10 N
20 N
10 √2 N
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Question # 18
Which of the following quantities is / are scalar ?
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Dipole moment
Electrical permitivity
Electric field
Electrical potential
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Question # 19
The total magnification of a combination of two lenses having individual magnification M1 and M2 is
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M
1
+ M
2
M
1
M
2
M
1
- M
2
M
1
/ M
2
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Question # 20
If two non-zero vector A and B are parallel to each other.then A .B is equal to
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Zero
AB
A + B
A-B
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Question # 21
On reversing the direction of the applied force F,
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the magnitude of torque changes
the direction of torque remains unchanged
the direction of torque is reversed
both the direction and magnitude of torque change
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Question # 22
Choose an answer
1.02 x 10
-3
ms
-1
0.12 x 10
-3
ms
-1
1.1 ms
-1
1.21 ms
-1
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