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Online Tests
Physics General Science Test Medium Mode MCQs With Answers
Question # 1
A fuse wire is having 5 ampere current rating. What is the peak value of current it can have?
Choose an answer
0.7074 A
7.07 A
0.0707 A
7.707 A
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Question # 2
The process of formation of spectrum is called:
Choose an answer
Interference
Spectroscopy
Dispersion
Reflection
Botha (A) and (D)
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Question # 3
Waves transport energy
Choose an answer
without transport energy
with matter
both of them
none of them
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Question # 4
The nucleus/nuclei of hydrogen is/are:
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Proton
Deuteron
Triton
All of these
None of these
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Question # 5
The molecules or ions in a crystalline solids are
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static
not static
randomly moving
all of them
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Question # 6
.Depletion region contains:
Choose an answer
Protons
Positive ions
Negative ions
Both (B) and (C)
Both (A) and (C)
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Question # 7
Bodies failing freely under gravity provide good example of motion under
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non-uniform acceleration
uniform acceleration
variable acceleration
increasing acceleration
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Question # 8
Pressure exerted by a gas on the walls of its container in due to
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adhesion between the gas molecules and the container
cohesion between the gas molecules and the container
collision between the gas molecules and the container
surface tension of the gas
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Question # 9
The change of magnetic flux through a circuit will produce
Choose an answer
Magnetic Field
Electric Field
emf
a.c
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Question # 10
When a platinum wire is heated, it appears orange red at
Choose an answer
500
°C
900
°C
1100
°C
1300
°C
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Question # 11
The intensity of emitted energy (with wavelength) radiated from a black body at different temperatures was initially measured by:
Choose an answer
Lummer
Planck
Pringsheim
Both (A ) and (B)
Both (A) and (C)
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Question # 12
Which of the following phenomenon cannot take place if we consider light as longitudinal wave?
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diffraction
interference
polarization
reflection
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Question # 13
In young's double slit experiment the separation between the slit is halved and distance between the slit and screen is doubled.The fringe width is
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Unchanged
Halved
Doubled
Quadrupled
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Question # 14
Repeaters are the devices which regenerate the signals and are placed at about
Choose an answer
20 km
30 km
40 km
50 km
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Question # 15
If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting calculate the focal length of objective
Choose an answer
100 cm
10 cm
20 cm
25 cm
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Question # 16
The solids are classified as:
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Metals
Crystalline
Amorphous
Polymeric
All expect A
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Question # 17
An electric room radiator, which operates at 50V has resistance of 50 Ω. Power of the radiator is approximately:
Choose an answer
100W
50W
450W
1000W
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Question # 18
When a silicon crystal is doped with pentavalent impurity which are
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Boron
Antimony
Gallium
None of these
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Question # 19
The units of the temperature coefficient of resistant are
Choose an answer
ΩK
-1
K
-1
ΩK
(ΩK)
-1
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Question # 20
Computer chips are made from
Choose an answer
Conductors
Semiconductors
Insulators
Both A and B
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Question # 21
You are traveling in a car during a thunder storm. In order to protect yourself from lightning you would prefer to
Choose an answer
Remain in car
Take shelter under tree
Get on and lie flat on the ground
Touch the nearest electric pole
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Question # 22
The minimum energy required by an electron to eject from metal surface is known as:
Choose an answer
Photo energy
Critical energy
Threshold energy
Work function
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