This is possibly the hugest accurate collection of NUST entry test (NET) MCQs collected from students who appeared in past NET.Enjoy it and don't forget to give your answers in comments.
NET physics
- the origin
of field of force is
- spin
motion of nucleus
- charge
on electron
- mass
of the object
- not
yet known
- the force
experienced by unit positive charge place3d at a point in electric field
is known as
- electric
field intensity
- electric
force
- magnetic
field intensity
- capacitance
- the
electric intensity at infinite distance from the point charge is
- zero
- infinite
- 1
volt /m
- Negative
- Two point
charges of 16 micro C and 4 micro C are separated by a distance of 3.0 m,
the spot on the line joining the two charges where electric field is zero
is
- Between
the two charges
- Left
of 4 micro C charge
- Right
of 4 micro C charge
- Right
of 16 micro C charge
- Good news!
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If a close surface contains two equal and opposite charges, the net electric flux from the surface will be - Electric flux is a
- Vector
quantity
- Scalar
quantity
- Tensor
- Abstract
- A charge of
0.1 C accelerated through a potential difference of 1000 V acquires K.E
- 200
J
- 1000
J
- 400
J
- 100
J
- The value
of relative permittivity constant for air is
- 1.006
- 1.0006
- 1.000006
- 1.6
- Sharks
have special organs, called the ampullae of lorenzini that detect potential
difference of the order of
- Milli
volt
- Micro
volt
- Nano
volt
- Pico
volt
- The motion
of windshield wipers of cars is the application of
- Energy
stored in capacitor
- Charging
and discharging of capacitor
- Energy
density
- None
of these
- The
capacitance of a capacitor increases by
- Decreasing
, separation between plates
- Increasing
area of plates
- Placing
dielectric between plates
- All
- Who
introduced the concept of electric o electric field lines
- Michael
Fa raday
- Maxwell
- Dalton
- Newton
- Which one
is a photo conductor
- Selenium
- Sodium
coated oxides
- Potassium
coated oxide
- All
- Two points
have a difference of potential of 10 volts. Work done in moving a charge
of 5 coulomb from one point to another is
- 2j
- 50 J
- 10 J
- 12J
- A charged
oil drop is stationary between two metallic plates. If the drop caries a
charge of q C and mass m kg, the PD between plates is
- F/q
- qE
- mg/d
- mgd/q
- in ERG,
the graph is plotted between time and
- current
- potential
difference
- forc3e
- work
- pyrex
glass is an example of
- conductor
- insulator
- semi
conductor
- dielectric
- the vessel
containing electrolyte and two electrodes is known as
- acquifier
- voltameter
- primary
cell
- voltmeter
- Rheostate
consists of a wire of
- Manganin
- Silver
- Aluminium
- Molybedenum
- If the
fourth band is silver then the tolerance is
- 10 %
- 20 %
- 5%
- 50%
- A zero ohm
resistor is indicated by
- orange
band
- Four
black band
- One
black band
- Red
band
- If length
of wire is doubled uniformly by stretching the wire then its resistance
becomes
- Four
times
- One
fourth
- Two
times
- Remains
same
- The
terminal potential difference is greater than emf of a cell when
- R =
infinity
- Battery
is supplying current
- R
= 0
- When
battery is being charged
- The total
flux through a closed surface depends upon
- Shape
of closed surface
- Geometer
of the closed surface
- Charge
enclosed by the surface
- All
of the above
- Two plates
are 2 cm apart. A potential difference of 10 V is applied between them,
the electric field between the poates is
- 200
N/C
- 2
N/C
- 500
N/C
- 5
N/C
- A 40 watt
100 watt and 150 watt bulbs are connected in series across 220 volt
supply. Which bulb will be brightest?
- 150
watt
- 100
watt
- 40
watt
- All
have same brightness
- An ideal
voltmeter has resistance
- finite
- Zero
- Constant
- Infinite
- When the
potential difference is applied across the conductor a directional flow of
electrons sets up. The drift velocity of electrons _ with increasing
temperature
- Increases
- Decreases
- Constant
- First
increase then decreases
- A 60 watt
lamp operates at 50 % effiency. How much energy is dissipatedin 10 sec
- 200 J
- 300 J
- 600 J
- None of
these
- A
thermistor measures very low temperature near
- 5 C
- 5K
- 10 C
- 10k
- Resistance
offered by a meter cube of a material is known as
- Conductivity
- Resistivity
- Inductivity
- Conductance
- An
electrical motor has power 500 W the current drawn through it is 4A Find
potential difference
- 126
V
- 127
V
- 125
V
- 120
V
- One
thousand watts of electric power is transmitted to a device by means of
two wires, each of which has resistance of 2 oh. If the resulting
potential difference across the decive is 1000 volts the potential
difference across the source supplying power is
- 240
V
- 100
V
- 50 V
- 200
V
- An
electric charge on the surface of a hallow metal sphere is doubled, the
electric field intensity at middle, inside the sphere
- Increases
decreases
- Remains
same
- Zero
NUST NET Chemistry
- Modern
periodic table has number of groups and number of periods
- 8,12
- 12,7
- 7,8
- 8,7
- F
block elements are also called
- Outer
transition element
- Inner
trasition elements
- Alkaline
earth elements
- Coinage
earth metal
- Which one
of the following elements has the non variable oxidation state
- Berylium
- Chlorine
- Bromine
- Nitrogen
- The
elements of 1 A and II A group are obtained by the electrolysis of their
molten
- Chlorides
- Carbonates
- Nitrate
- Oxides
- Which
element is the most electropositive in the periodic table
- Barium
- Calcium
- Potassium
- Cesium
- What are
the products of the thermal decomposition of lithium nitrate?
- Lithiumnitride
and oxygen
- Lithium
oxide, nitrogen and oxygen
- Lithium
osice, nitrogen dioxide and oxygen
- Lithium
oxide and nitrogen
- Uniqueness
of mendeleev’s periodic table is that he
- Determined
atomic mass of elements
- Classified
elements inot 12 periods
- Left
empty spaces for undiscovered elements
- Placed
Na, K with Ca and Mg
- Which one
of the following determines the position of an element in the periodic
table?
- Chemical
reactivity
- Number
of electorns in outer orbital
- First
ionization energy
- Number
of protons in the nucleus of its atom
- Lattice
energy of carbonate of alkaline earth metals increases down the grup because
of
- Increase
in the size of cation
- Decrease
in polarization
- Both
a and c
- None
of the above
- As we move
from groups IA to groups IIA which of the following trend is incorrect
- Metallic
radus decreases
- First
ionization energy increases
- Thermal
stability decreases
- Solubility
of compounds
- All the
following elements of IA group form super oxide except
- Na
- Rb
- K
- Cs
- Group of
elements in the modern periodic table is based on
- Core
electrons
- Inert
electron pair
- Valence
electrons
- Lone
pair of electron
- Which of
the following elements imparts brick red color in the flame
- Na
- Ca
- K
- Sr
- Which of
the scientists experimentally proved that element should be arranged in
the periodic table on the basic of atomic number and not on the basic of
atomic mass
- Mendeleev
- Newland
- Dobereiner
- Moseley
- Elements
in the periodic table are classified into four blocks. This
classification is bsed upon
- Valence
orbital
- Sub-shell
- Shell
- All
- Which of
the following elements has greatest value of first ionization energy
- N
- O
- C
- B
- Which
halogenhas greatest value of electron affinity
- F
- Cl
- Br
- I
- Ionization
energy is the index to the metallic character. The element which
have
- Low
ionization energy meals
- High
ionization energy nonmetals
- Intermediate
metalloids
- All
- Which is
incorrect statement?
- 1st
electron affinity value is always negative
- Term
electronegativity is associated with molecule
- Electron
affinity is associated with atom
- Oxidation
number increases down the group
- Which
statement about oxidation number is incorrect
- Oxidation
number increases along the period
- Oxidation
state is the apparent charge on an atom in the compound
- Transition
elements show more than one oxidation number
- Maximum
oxidation number is +7
- Which of
the element is the best conductor of electricity ?
- Zn
- Fe
- Cu
- Ca
- Hydration
energy depends on
- Charge
on ion \
- Size
of ion
- Both
a and b
- None
of these
- Hydrogen
has which of the following properties?
- it
act as reducing agent like IA group elements
- It shows
resemble with IA, IVA,VIIA group
- During
electrolysis it is collected at cathode like metals
- All
- Keeping in
view the size of atoms, which order is correct one?
- Mg>Sr
- Ba>Mg
- Cl>i
- Lu>Ce
- Which is
incorrect?
- All
the metal are good conductors of electricity
- All
the metals are good conductor of heat
- All
the metals form positive ions
- All
the metals from acidic oxides
- Which one
of the following minerals has no calcium
- Gypsum
- Dolomite
- Calcite
- Carnallite
- Which of
the following eolement can only react with NaOH
- Be
- Mg
- Ca
- Ba
- Which of
the following oxides in insoluble ion H2O
- BeO
- MgO
- Both
- CaO
- Na is
obtained by electrolysis of molten NaCl by
- galvanic
cell
- Down cell
- Nelson
cell
- Fuel cell
- Which is
the use of sulphur?
- Essential
constituent of plant
- Has
influence on chlorophyll development of leaves
- For
the enlargement of root system
- All
- Which of
the element form polymeric halides?
- Na
- Al
- S
- C
- Which is
nt a use of lime
- As
dehydrating agent
- In
iron extraction
- Manufacturing
of bleaching powder
- As
flux in welding
- Oxides of
beryllium are
- Acidic
- Basic
- Amphoteric
- Neutral
- In
electrolysis of aqueous solution of NaCl the primary product obtained at
anode electrode is
- Na
- Cl2
- NaOH
- NaCl
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