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11th Class Part 1 Physics Test Online MCQs With Answers
Question # 1
When ever the path difference between the waves is integral multiple of half the wavelength, interference will be
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Constructive
Destructive
(-)ve
(+) ve
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Question # 2
If the object is at 5 cm from the lens of simple microscope than its magnifying power will be.
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5
10
15
25
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Question # 3
the length of simple pendulum of time period 1 second is
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2 m
1 m
0.5
0.25 m
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Question # 4
The distance between two consecutive crest is called.
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Displacement
Amplitude
Wave front
Wavelength
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Question # 5
The phenomenon of polarization of light reveals that sun light is
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Longitudinal waves
Transverse wave
Electromagnetic waves
Monochromatic wave
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Question # 6
A 2 meter of high tank is full of water. If a hole appears at its middle, then the speed of efflux is.
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4.4 ms-1
10 ms-1
6.2 ms-1
20 ms-1
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Question # 7
Before the launch of a rocket the mass of fuel of the rocket is approximately consists of.
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60%
50%
80%
100%
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Question # 8
For maximum range the angle of projection must be
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30
o
45
o
60
o
90
o
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Question # 9
The mass of a body is quantitative measure of its
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Motion
Inertia
Weight
All of these
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Question # 10
The acceleration produced by elastic restoring force is
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Perpendicular to force
Opposite to force
In same direction as force
Zero
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Question # 11
A set of frequencies which are multiples of the fundamental frequency are called.
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Doppler effect
Nodal frequencies
Beat frequencies
Hamonics
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Question # 12
The diameter of a lens is called
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Focal length
Aperture
Principle axis
Centre
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Question # 13
The efficiency of diesel engine is about
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25 % to 30%
35% to 40%
40% to 50%
50% to 60%
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Question # 14
The distance between the consecutive nodes is
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Question # 15
The maximum velocity necessary to put a satellite into orbit is
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7.1 kms-1
7.3 kms-1
7.9 kms-1
8,9 kms-1
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Question # 16
Half wavelength corresponds to
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0
o
90
o
180
o
360
o
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Question # 17
Pascal is the unit of
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Pressure
Force
Tension
Weight
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Question # 18
INTELSAT VI satellite operates at microwave frequencies of.
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2,4,6,10 GHz
4,6,11 and 14 MHz
4,6,11 and 14 GHz
2,4,6 AND 14 GHz
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