Three resistors connected in series have Individual voltages labeled V1, V2, and V3, respectively. Which of the following expresses the value of the total voltage V, taken over the three resistors
together?

Efficiency of the Carnot’s cycle will be 100% if the temperature of cold reservoir is:

The energy stored inside a capacitor is given by the relation:

NUMS Mock 3
Physics
Electrostatics

Transition of electrons should occur between which orbitals(n) that will emit the longest wavelength in the Balmer series of Hydrogen.

NUMS 2019 Reconduct
Physics
Atomic Spectra
Elimination Tool:

Which experimental technique reduces the systematic error of the quantity being investigated?

ETEA 2017
Physics
Measurements
Elimination Tool:

If a closed surface contains two equal and opposite The net electric flux from the surface will be

The torque will be greater if:

NTS 2011
Physics
Circular Motion and Momentum
Elimination Tool:

What is 1 radian in degrees approximately

PMC Sample 3
Physics
Measurements
Elimination Tool:

The rapid escape of air from a burst tyre is an example of:

NUMS 2020
Physics
Heat and Thermodynamics
Elimination Tool:

An electron moving with velocity v has momentum 3 x 10 -26 Kg.m/s. The de Broglie wavelength associated with it is ______. Value of h = 6.63 x 10-34 is.

NTS 2019
Physics
Dawn of Modern Physics
Elimination Tool:

An object is moving along a circular path of radius 4m. What will be its angular displacement if it moves 14 m on this circular path?

NUMS Mock 2
Physics
Circular Motion and Momentum

When an electron and its antiparticle positron come close enough to each other, they completely convert into radiation energy in the form of photons, this process is called:

NTS 2018
Physics
Dawn of Modern Physics
Elimination Tool:

Electromagnetic waves are produced due to flow of

If A = 2i + 3j – k , B = 4i + 2j – 2k . Find a vector x which is parallel to A but has the magnitude of B?

NUMS Mock 1
Physics
Scalars and Vectors

Two bodies X of mass 4kg  and Y of mass 6 kg have same linear momentum. If the kinetic energy of Y is 48 J then kinetic energy of body X is:

The unit of temperature in base unit is:

UHS 2015
Physics
Measurements
Elimination Tool:

If capacitor is connected with battery and is fully charged then

Conversion of heat energy completely into work violates:

NUMS 2014
Physics
Heat and Thermodynamics
Elimination Tool:

If A = 2.79 and B = 8.1 , then A+B =?

If the value of g is made g/16, what will be the effect on time period of pendulum?

Find the gravitational force of attraction between two balls each weighing 10 kg, when placed at a distance of 1 meter apart.

NTS 2016 DUHS & JSMU
Physics
Gravitation
Elimination Tool:

In a pure resistive circuit current and voltage are

An A.C emf of E = 100 sin (100 π t) volt is concerned with a choke of negligible resistance. In order to produce current of amplitude 1 A, the inductance of the choke should be:

NUMS 2015
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

A maintenance crew is working on a section of a three-lane highway with only one lane open to traffic. This result is much slower traffic flow. The cars on this highway behave like:

NUMS 2015
Physics
Fluid Dynamics
Elimination Tool:

A player throws a ball at an initial velocity of 36 m/second. The maximum distance the ball can reach (assume ball is caught at the same height at which it was released) is:

NTS 2011
Physics
Motion in Two Dimensions
Elimination Tool:

Whenever the average and instantaneous velocities are equal the body is said to have a:

NTS 2016 SMBBMC
Physics
Motion in Two Dimensions
Elimination Tool:

A metal sphere of radius r is dropped into a tank of water. As it sink at speed v, it experience a drag force F given by F= krv, where k is a constant: What are the SI base units of k?

ETEA 2017
Physics
Measurements
Elimination Tool:

In the case of linear deformation, the ratio of tensile stress to tensile strain is called:

UHS 2018
Physics
Physics of Solids
Oscillations and Simple Harmonic Motion
Elimination Tool:

What would be Compton Wave shift if X-rays are scattered at an angle of 90 degree?

Penetration power of gamma rays as compared to alpha rays is

Which behaves as a particle as well as wave

In case of harmonic oscillator total energy remains

PMC Sample 1
Physics
Work, Power and Energy
Elimination Tool:

X rays are similar in nature to:

NUMS 2018
Physics
Atomic Spectra
Elimination Tool:

Confining of wave into one plane is called

The net charge flowing through any section of the conductor per unit time is known as?

NTS 2015 SMBBMC
Physics
Electrostatics
Elimination Tool:

Unit of Momentum Is?

Third law of Newton is also called:

NUMS 2016
Physics
Forces and Motion
Elimination Tool:

A ball is released from a height h, above a table. Given that air resistance is negligible and 50% of its kinetic energy is converted to other forms of energy at each bounce, what will be the height reached after the second bounce?

At what angle of projection of a projectile the range becomes half of its maximum value?

PMC 2020
Physics
Motion in Two Dimensions
Elimination Tool:

Power of RCL circuit at resonance Is?

A cable 4 km long and of total resistance 1 Ohm carries electric current from a generator producing 100kW at 10,000 Volts. The current in amperes in the cable is:

PMC Practice 5
Physics
Electronics
Elimination Tool:

The formula for the Paschen series for the Hydrogen spectrum is _______.

NTS 2019
Physics
Atomic Spectra
Elimination Tool:

A spectrometer is used to find.

A ball is thrown from some height; it strikes the ground and bounces back to the same height. This scenario represents which situation:

When an Operational amplifier is used as Inverting amplifier, then angle between its output and input signal is:

NUMS 2019 Cancelled
Physics
Electronics
Elimination Tool:

Law of conservation of momentum states that:

I. there is no external force applied to a system, then the total momentum of that system remains constant

II. if there is an external force applied to a system, then the total momentum of that system remains constant

III. if there is no external force applied to a system, then the total momentum of that system keeps changing

NTS 2011
Physics
Circular Motion and Momentum
Elimination Tool:

Which unit is used in the measurement of Displacement?

PMC Practice 4
Physics
Scalars and Vectors
Elimination Tool:

A disc, a hoop, and a sphere of the same mass and radius are rolled down from a frictionless, inclined plane. Which has a greater speed on reaching the ground?

NUMS 2019 Cancelled
Physics
Circular Motion and Momentum
Elimination Tool:

Wave fronts coming from small light bulb

Damping is the process whereby _______ is ______ from the oscillating system.

NUMS 2019 Reconduct
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

If a car collides with a housefly, what will be the magnitude of the force experienced by the housefly?

NTS 2018
Physics
Forces and Motion
Elimination Tool:

Artificial gravity can be supplied by which of the following ways so that normal force of gravity can be generated for the astronaut:

NTS 2011
Physics
Gravitation
Elimination Tool:

A pendulum is placed at Lahore, Murree, and K2. At which location will the frequency of Pendulum be maximum?

The time duration between two consecutive heartbeats of a normal human being is

Which of the following statements is not consistent with Bohr’s set of postulates regarding the hydrogen atom model with regard to the emission and absorption of light?

NTS 2013
Physics
Atomic Spectra
Elimination Tool:

Which of the following does not travel in vacuum?

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

In heavy nuclei the number of neutrons is than protons

Semiconductors have conductivity of the order

Find the heat transferred to or from the system when a thermodynamics system undergoes a process in which its internal energy decreases by 300 J. If at the same time, 120 J of work is done on the system.

NTS 2016 DUHS & JSMU
Physics
Heat and Thermodynamics
Elimination Tool:

When a fluid is incompressible, it means:

FMDC 2018
Physics
Physics of Solids
Elimination Tool:

In modern day electrical arrangements, which of the following is connected in series with the others?

Input resistance of an Operational Amplifier is:

NUMS 2019 Reconduct
Physics
Electronics
Elimination Tool:

The values of electric intensity will ____ due to the presence of dielectric medium:

PMC 2020
Physics
Electrostatics
Elimination Tool:

1 femto

a) 10-15

b) 10-9

c) 10-6

d) None

Characteristic x-rays are produced by:

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

Molecules of a gas at constant pressure for a fixed amount of gas have average kinetic energy X. Increasing temperature from 27˚C to 327˚C, the average K.E. of the molecules will become:

NUMS Mock 4
Physics
Heat and Thermodynamics

A ball is thrown vertically upward with the velocity of 98 m/sec, how high does the ball rise?

NTS 2012
Physics
Motion in Two Dimensions
Elimination Tool:

Is it possible to separate north pole only from bar magnet?

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

Flow speed of the fluid through a non-uniform pipe increases from 1 m/sec to 3 m/sec. If change in P.E. is zero, then pressure difference between two points will be: (density of the fluid = 1000 kg/m3)

UHS 2012
Physics
Fluid Dynamics
Elimination Tool:

A particle is projected from the ground with a kinetic energy E at an angle of 60 degree with the horizontal. Its kinetic energy at the highest point of its motion will be:

NUMS 2014
Physics
Motion in Two Dimensions
Elimination Tool:

Pa m² is the unit of

The photocell is similar to:

PMC Practice 5
Physics
Dawn of Modern Physics
Elimination Tool:

A balloon Is going upwards with a velocity 12 m/s. it releases a packet when it is at a height of 65 from ground. flow much time the packet will take to reach the ground if g=10 m/s^2?

When carrying electricity on long distances. Step up transformer are used to:

If the volume of a gas is fixed then on increasing its temperature, its pressure______

NTS 2016 SMBBMC
Physics
Heat and Thermodynamics
Elimination Tool:

The unit of resistivity is:

NUMS 2020
Physics
Current Electricity
Elimination Tool:

Which one of the following physical quantity does not the dimension of force per unit area

ETEA 2019
Physics
Measurements
Elimination Tool:

In Nuclear Physics the mass defect is referred to _______.

NTS 2019
Physics
Nuclear Physics
Elimination Tool:

The scalar product of (2i – j + 3k) . (31 + 2j – k) i?

NTS 2014
Physics
Scalars and Vectors
Elimination Tool:

Which one of the following force is non-conservative:

PMC 2020
Physics
Forces and Motion
Elimination Tool:

In an astronomical telescope, the distance between the objective and eyepiece is called:

NTS 2013
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

Displacement is a:

PMC Practice 2
Physics
Scalars and Vectors
Elimination Tool:

If the potential difference of 1 volt is applied across the end of a conductor and the current flowing through the conductor is one ampere then the resistance of the conductor is said to be?

NTS 2015 SMBBMC
Physics
Electrostatics
Elimination Tool:

The brightness spot on the screen in the CRO is controlled by:

Least count of micrometer screw gauge is

Calculate the frequency if the number of revolutions is 300 and the paired poles are 50.

PMC Practice 6
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

For a stiff spring, the value of spring constant is:

NUMS 2019 Cancelled
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

An electric cell of e.m.f E, is connected across a copper wire of diameter d and length L. The drift velocity of electrons in the wire is v0. If the length of the wire is changed to 2L, the new drift velocity of electrons in the copper wire will be:

NUMS 2014
Physics
Current Electricity
Elimination Tool:

A stone is thrown horizontally from 2.4 m above the ground at 35 m/s. The wall is 14 m away and 1 m high. At what height will the stone reach when at the wall? Where will the stone land?

NTS 2016 DUHS & JSMU
Physics
Motion in Two Dimensions
Elimination Tool:

Two vectors are of magnitude 50 and 31,the resultant might be?

If an AC voltage of rms value of 10 volts is applied as input of a half-wave rectifier, then the voltage value of the DC output will be:

PMC Practice 4
Physics
Alternating Current
Elimination Tool: