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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:
Choose an answer
Motion emf
Electrostatic emf
Induced emf
Both A and B
Both A and C
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Question # 2
For the working of a heat engine, there must be
Choose an answer
a source of heat at high temperature
a sink at low temperature
both of them
none of them
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Question # 3
The concept of direction is purely:
Choose an answer
Absolute
Relative
Relative to stars always
Relative to the sun always
None of these
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Question # 4
It is customary represent a current flowing towards the reader by a symbol
Choose an answer
(x)
(+)
(.)
(-)
(
÷)
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Question # 5
The value of the metastable state for Neon is
Choose an answer
20.66eV
20.61eV
19.23eV
18.70eV
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Question # 6
Amorphous solids:
Choose an answer
Have definite melting points
Are called glassy solids
Have no definite melting point
Both (B) and (C)
Both (A) and (C)
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Question # 7
The conduction band in a solid
Choose an answer
may be empty
cannot be empty
should be filed
all of them
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Question # 8
The work is stored in the inductor as
Choose an answer
Electric potential energy
Elastic potential energy
Magnetic energy
Absolute potential energy
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Question # 9
INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:
Choose an answer
KHz
MHz
GHz
BHz
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Question # 10
A transistor has:
Choose an answer
One region
Two regions
Three regions
Four regions
None is correct
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Question # 11
The collision in which KE is conserved but momentum is not conserved is called:
Choose an answer
Elastic collision
Inelastic collision
any these
None of these
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Question # 12
The effect is to increase the inflating the bag is
Choose an answer
To compress the blood vessels
To increase external pressure
To cut off the flow of blood
All of these
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Question # 13
A person walks first 10 km north and 20 km east.then the resultant vector is
Choose an answer
22.36 km
22.46 km
25.23 km
20.36 km
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Question # 14
Einstein predicted the shift of light by sun coming from star towards Earths was the same as during the solar eclipse in 1919 is
Choose an answer
Φ = 1.235 sec of angle
Φ = 1.367 sec of angle
Φ = 1.693 sec of angle
Φ = 1.745 sec of angle
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Question # 15
In the formula for velocity of efflux v = √2gh, h is the
Choose an answer
Height of liquid column from bottom of vessel
Height of orifice from the bottom of the vessel
Height of liquid column above the orifice
Height of the vessel
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Question # 16
There are two electric bulbs of 40 W and 100 W. They are first connected in series and then in parallel across a source:
Choose an answer
40W bulb will be brighter in series and 100W in parallel
100W bulb will be brighter in series and 40W in parallel
40W bulb will be brighter in both the cares
100W bulb will be brighter in both the cares
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Question # 17
Photo phone was invented by
Choose an answer
Edison
Graham Bell
Bardeen
None of these
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Question # 18
Critical angle of light passing from glass to air is minimum for
Choose an answer
Red
Green
Yellow
Violet
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Question # 19
Inkjet printer can produce
Choose an answer
Black and white copy
Coloured copy
Both
None of these
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Question # 20
An Earth satellite in a circular orbit of 384000 km. What is its velocity in that orbit take me = 6.0 × 1024 Kv R
e
= 64000 km
Choose an answer
2.57 kms
-1
1.1 kms
-1
1.01 kms
-1
1.07 kms
-1
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Question # 21
The methods used for the conversion of biomass into fuels are
Choose an answer
Fermentation
Direct combustion
Direct sunlight
a & b
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Question # 22
In a photocell, certain metal emits electrons for :
Choose an answer
Visible light
Infrared light
Ultraviolet light
All of these
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