Two forces equal in magnitude but opposite In direction and not acting along the same line constitute a couple. The movement of this couple will be:

NTS 2018
Physics
Forces and Motion
Elimination Tool:

When an applied stress changes the volume, the change in volume per unit volume is known as:

FMDC 2018
Physics
Physics of Solids
Elimination Tool:

When the frequency of the applied force becomes equal to one of natural frequencies of body then the body oscillates with maximum displacement this phenomenon is called:

NUMS Mock 3
Physics
Wave Motion and Sound
Oscillations and Simple Harmonic Motion

Charge on an up-quark is:

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:

Negative strain indicates that

In photo-emission from a metal, if light of λ is replaced by light of wavelength λ / 4 , the maximum kinetic energy of the photoelectrons.

NUMS Mock 1
Physics
Dawn of Modern Physics

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

NUMS 2019 Reconduct
Physics
Electrostatics
Elimination Tool:

Which statement describes the electric potential difference between two points in the electric field of charge Q?

NTS 2019
Physics
Electrostatics
Elimination Tool:

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

ETEA 2019
Physics
Measurements
Elimination Tool:

If the grating element is made 1/10th the resolving power will become

If frequency of incident light is increased beyond threshold frequency, keeping light intensity constant, then:

NUMS Mock 2
Physics
Dawn of Modern Physics

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:

If a 2-ampere current is drawn from the battery in 10 minutes, how much charge will flow through the circuit in this time?

NUMS 2015
Physics
Current Electricity
Elimination Tool:

A body starts sliding on a rough horizontal surface with a speed of 10 m/s. If the coefficient of friction is 0.2, find the distance traveled by the body before coming to rest. (g = 10m/s)

NUMS Mock 2
Physics
Forces and Motion

Heisenberg uncertainty principle states:

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?

A double convex lens acts as a diverging lens when the object is placed

The branch of Physics in which we study the properties of light and its applications on optical instruments is called?

A ball is thrown vertically upward with a velocity of 98 m/s. How long does it take to reach its highest point?

NTS 2016 SMBBMC
Physics
Motion in Two Dimensions
Elimination Tool:

In interference energy destroyed

The acceleration is a _____.

PMC Practice 6
Physics
Scalars and Vectors
Elimination Tool:

.A stone dropped from a certain height can reach the ground in 5 s. It is stopped after 3 seconds of its fall and then allowed to fall again. Find the time taken by the stone to reach the ground for the remaining distance.

NTS 2014
Physics
Motion in Two Dimensions
Elimination Tool:

The existence of positron was discovered in the:

PMC Sample 3
Physics
Dawn of Modern Physics
Elimination Tool:

When the aircraft Concorde is moving in a horizontal plane at a constant speed of 650 ms-1, its turning circle has a radius of 80 km. What is the ratio of the centripetal force to the weight of the aircraft? (g = 9.8 m/s2)

NTS 2013
Physics
Circular Motion and Momentum
Elimination Tool:

Upon signal of starting the race, the athlete starts from rest with a constant acceleration of 8 m/s2. At the same time, a cyclist traveling with a constant speed of 72 km/h passes the athlete. How far beyond the starting point will the athlete overtake the cyclist and what will be the speed of the athlete at the time when it overtakes the cyclist respectively?

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

The number L = 8.0 x 104cm can be expressed as ________.

NUMS 2019 Reconduct
Physics
Measurements
Elimination Tool:

A ship approaching a seaport at 10 km/h sends a sonic signal of frequency of 1000 Hz. What is the apparent frequency of the signal as received by a receiver on the seaport?

NUMS Mock 4
Physics
Wave Motion and Sound

AC is converted to D.C by:

Why picture on a TV screen become distorted when a magnet is brought near the screen?

NUMS Mock 2
Physics
Magnetism and Electromagnetic Induction

Michelson measured the length of a standard meter in terms of the wavelength of:

PMC Practice 2
Physics
Optics, Nature of Light and Optical Instruments
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:

Stokes’ Law is given as:

UHS 2013
Physics
Fluid Dynamics
Elimination Tool:

Transformer is used in rectification to ___________ the supply voltage.

PMC Practice 5
Physics
Alternating Current
Elimination Tool:

In an extrinsic semi-conductor charge carriers are

Formula for Horizontal Range of  projectile is

In a centre tap full wave rectifier if Vm is the peak voltage across the secondary of transformer, the maximum voltage across reverse bias is

PMC Practice 11
Physics
Electronics
Elimination Tool:

An atom would be neutral if it has equal number of:

PMC Practice 5
Physics
Atomic Spectra
Elimination Tool:

What is farad of electricity?

A ship approaching a seaport at 10 km/h sends a sonic signal of frequency of 1000 Hz. What is the apparent frequency of the signal as received by a receiver on the seaport?

NUMS 2015
Physics
Wave Motion and Sound
Elimination Tool:

Name the scientist who won the noble prize for discovery of energy quanta

Echo is produced by reflection of sound waves from a denser medium. What is the phase change between sound wave and echo?

NUMS 2019 Cancelled
Physics
Wave Motion and Sound
Elimination Tool:

Two spheres of the same size, one of mass 5 kg and the other of mass 50 g are dropped simultaneously from a tower. When they are about to touch the ground, they have the same:

NUMS 2015
Physics
Gravitation
Elimination Tool:

In a certain process, 400 J of heat energy is supplied to a system and at the same time 150 J of work is done by the system. The increase in internal energy of the system is _______.

NUMS Mock 4
Physics
Heat and Thermodynamics

If half-life of an element Is 4 minutes, then 3/4′ of It Is decayed in:

Who was awarded Nobel Prize (1921) for explanation of Photoelectric Effect?

Consider a car is travelling for one hour. Which of the following trips have the same average velocity?

PMC Practice 2
Physics
Scalars and Vectors
Elimination Tool:

There are initially 400 atoms in a radioactive sample. What would be the number of atoms after 3 half – life?

PMC 2020
Physics
Nuclear Physics
Elimination Tool:

Which one is the correct statement about selenium?

PMC Sample 2
Physics
Electrostatics
Elimination Tool:

An Inductor of 1H Is connected across a 220V, 50Hz supply. The peak value of current is approximately:

Which of the following is the angle of projection of a projectile if its range is equal to its height?

NUMS Mock 1
Physics
Forces and Motion

Two capacitors C1 = 3 uF and C2 = 6 uF are in series across a 90 volts D.C. supply. The total capacitance is given by:

NTS 2012
Physics
Electrostatics
Elimination Tool:

______ is defined as the sensation that sound produces in the ear of a listener and is clearly related to the frequency of sound. Frequency and ______ are both measured in Hertz (Hz). Thus greater the frequency the greater the _____ and lower the frequency lower the _______.

NTS 2017
Physics
Wave Motion and Sound
Elimination Tool:

Product of R and C is

The mass of earth on the basis of Newton’s Law of Gravitation is given by:

NTS 2012
Physics
Gravitation
Elimination Tool:

In a certain process, 400 J of heat energy is supplied to a system and at the same time 150 J of work is done by the system. The increase in internal energy of the system is _______.

NUMS 2020
Physics
Heat and Thermodynamics
Elimination Tool:

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?

Which of the following consist of two quarks? a

In a bridge type full-wave rectifier, if Vm is the peak voltage across the secondary coil of the transformer, the maximum voltage coming across each reverse biased diode is:

PMC Practice 5
Physics
Alternating Current
Elimination Tool:

One kilowatt-hour is commonly termed as one commercial unit of electric energy which is equal to:

PMC 2020
Physics
Current Electricity
Elimination Tool:

If an electron jumps from 68′ orbit to 7 orbit, the increase in radius will be:

The current measuring part of the Avometer consists of a number of low resistors connected:

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.1 m/s2. At the same instant a truck, traveling with a constant speed of 9.2 m/s, overtakes and passes the automobile. How far beyond the traffic signal will the automobile overtake the truck?

NTS 2010
Physics
Motion in Two Dimensions
Elimination Tool:

A wire of resistance R is bent in the form of a circle the resistance between two points on the circumference of the wire and at the end of the diameter of circle is

NUMS Mock 4
Physics
Current Electricity

A star moving away from earth shows:

PMC Practice 21
Physics
Electromagnetic Waves
Elimination Tool:

The food we eat in one day has about the same energy as:

NUMS 2020
Physics
Work, Power and Energy
Elimination Tool:

If the potential difference between the plates of a capacitor with capacitance C is 4V, how much charge will accumulate on each of its plate?

The series limit for the Balmer series of hydrogen spectrum occurs at 3664 A. Calculate Ionization energy of hydrogen atom.

NTS 2013
Chemistry
Dawn of Modern Physics
Elimination Tool:

During the production of x-rays, the cathode and anode are enclosed inside an evacuated glass chamber and a high DC voltage of the order of:

NUMS 2020
Physics
Atomic Spectra
Elimination Tool:

The dimensions of angular velocity (ω) is:

NUMS 2019 Cancelled
Physics
Measurements
Elimination Tool:

The amount of heat provided to a system at constant pressure (qp) is equal to _______.

NTS 2012
Physics
Heat and Thermodynamics
Elimination Tool:

With the usual notation, the first law of thermodynamics applied to one mole of an ideal gas can be written in the following form:

CvΔT=ΔQ – PΔV

In a change for which Boyle’s law is obeyed, which of the following would necessarily be zero?

NTS 2017
Physics
Heat and Thermodynamics
Elimination Tool:

Gamma-ray (?) can produce ionization in which of the following way/s?

I. It may lose all its energy in a single encounter with the electron of an atom (Photoelectric effect).

II. It may lose only a part of its energy in an encounter (Compton effect).

III. Very few of very high energy ? ray photons may impinge directly on heavy nuclei, be stopped and annihilated giving rise to electron-positron pairs (The materialization of energy).

NTS 2013
Physics
Dawn of Modern Physics
Elimination Tool:

A travelling wave, in which the particles of the distributed medium, move parallel to the direction of propagation of the wave is called:

NTS 2019
Physics
Wave Motion and Sound
Elimination Tool:

Which of the following is CORRECT for photons?

PMC 2021 Tested
Physics
Electromagnetic Waves
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:

A stone dropped from the roof of a building takes 4 s to reach the ground. The height of the building is:

NUMS 2017
Physics
Motion in Two Dimensions
Elimination Tool:

If the unit vectors i, j, k are perpendicular to each other therefore

i.i = j.j = k.k = ______.

I.j = j.k = k.i = ______.

NUMS Mock 2
Physics
Scalars and Vectors

The charge of a photon is:

PMC Sample 1
Physics
Dawn of Modern Physics
Elimination Tool:

A wave, which transfers _____ by moving away from the source of disturbance is called _____ wave.

NUMS Mock 1
Physics
Wave Motion and Sound

A changing electric field produces

Presence of Photon was confirmed by

If a voltage of 9V is applied between ends of a wire whose resistance is 0.2 ohm, what will be the resulting current?

NTS 2015 SMBBMC
Physics
Current Electricity
Elimination Tool:

Electric field strength of a point charge is E and electric potential is V, at a distance ‘r’ from the point charge. What is the electric potential at a point for the same point charge where electric field strength is E/4?

UHS 2019
Physics
Electrostatics
Elimination Tool:

The width of depletion region Increases due to:

A block of mass 50 kg is pulled on a frictionless floor by a force of 210 N directed at 30 degrees to the horizontal. If the block moves 3.0 m, what is the work done on it by the applied force?

NTS 2013
Physics
Forces and Motion
Elimination Tool:

The main difference between X rays and Y rays is:

PMC 2020
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

In Young’s Experiment, the central spot In Interference pattern is

The velocity of X rays is equal to that of:

NUMS 2018
Physics
Atomic Spectra
Elimination Tool:

1 femto is equal to

In a pure resistive circuit current and voltage are