Minimum velocity needed to put the satellite into orbit is

Alpha rays are nuclear radiations. They are in fact same as _____ nuclei.

NUMS 2018
Physics
Nuclear Physics
Elimination Tool:

ML^2T^-3 is the dimension of:

Moment of inertia of a thin rod of mass m, length l about a line passing through its center is:

NUMS 2019 Cancelled
Physics
Circular Motion and Momentum
Elimination Tool:

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.

UHS 2018
Physics
Dawn of Modern Physics
Elimination Tool:

Two vectors A and B both have magnitude of 5N and the angle between them is 135, then magnitude of A x B will be

Calculate the energy of a photon of wavelength 6600 angstroms.

PMC Sample 3
Physics
Atomic Spectra
Elimination Tool:

A transistor cannot be used as

During the process of nuclear disintegration, when beta particle emission occurs, atomic no. of the atom changes by _____ and the mass number changes by ______.

NUMS 2018
Physics
Nuclear Physics
Elimination Tool:

A ball falls vertically and bounces on the ground. The following statements are about the forces acting while the ball is in contact with the ground. Which statement is correct?

NTS 2017
Physics
Forces and Motion
Elimination Tool:

A guy is standing in a lift falling freely under gravity and releases a ball from hand. As seen by the ball, the boy:

NUMS 2017
Physics
Gravitation
Elimination Tool:

1. Which one type of fibre is more suitable for transmission of signals in which white light is used?Which one type of fibre is more suitable for transmission of signals in which white light is used?

If the length of a current carrying solenoid is doubled keeping the number of turns same and the current is increased to 9 times, the value of magnetic field compared to the original magnetic field B will be:

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

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

Ideal fluid is:

NUMS 2018
Physics
Fluid Dynamics
Elimination Tool:

Two identical bodies have a velocity ratio 2 : 3. What is the ratio of kinetic energies?

NUMS 2020
Physics
Work, Power and Energy
Elimination Tool:

A body of mass 4 kg attached to a spring is displaced through 0.04 m from its equilibrium position and then released. If the spring constant is 400 N/m, find the time period of the vibration?

NTS 2016 DUHS & JSMU
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

Two sample of gases ‘1’ and ‘2’ are taken at same temperature and pressure
but the ratio of number of their volume is V1
:V2 = 2:3. What is the ratio of the
number of moles of the gas sample?

UHS 2015
Physics
Fluid Dynamics
Elimination Tool:

If a pipe is closed at one end and open at the other, the closed end is a:

PMC Sample 3
Physics
Oscillations and Simple Harmonic Motion
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:

The time of open vibration of a simple pendulum may be decreased by:

NTS 2017
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

A spectrometer is used to find.

A particle is moving in a uniform circular path. If its mass is reduced to half of its original mass, the force acting upon it will be?

In which of the following scenarios will the K.E be zero?

A photosensitive material would emit electrons if it is excited by a photon beyond a threshold. To cross the threshold, what should be increased?

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

A capacitor and an inductor are connected to A.C. supply. If we double the frequency of A.C. supply then the effect on reactance of capacitor XC and reactance of inductor XL will be:

NUMS 2019 Cancelled
Physics
Electronics
Elimination Tool:

Value of Wien’s constant is?

Applications of laser is/are:

NTS 2011
Physics
Electromagnetic Waves
Elimination Tool:

The magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called:

NUMS Mock 2
Physics
Magnetism and Electromagnetic Induction

Germanium and silicon are semiconductors having crystalline structures. Both these materials have ______ valence electrons in their outermost shells.

NTS 2014
Physics
Electromagnetic Waves
Elimination Tool:

A convex lens gives a virtual image only when the objects leis

In CRO, electrons are emitted from:

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

Unit of Momentum Is?

Which one of the following properties is not exhibited by the longitudinal waves?

PMC 2020
Physics
Wave Motion and Sound
Elimination Tool:

How much angle does the vector 2i+3j makes with y axis.

An electric rod of 2000 watts rating boils a certain quantity of water in 10 minutes, the heat which generated for boiling this water is:

NTS 2013
Physics
Electrostatics
Elimination Tool:

Unit of emf?

Ratio of Nano to Atto Is:

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 light we see is:

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

What will be the velocity of a body revolving In a circle of radius 2m with an angular velocity of 1 rev/sec?

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

The property of light, bending around obstacles and spreading of waves into the geometrical shadow of an obstacle is called ______.

NUMS 2019 Reconduct
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

In Young’s double-slit experiment, if d is the separation between two slits 1 is the wavelength of light and θ is the angle of the line from the centre of slits to the point of observation on the screen; then for maxima (bright fringe); the formula is _________.

NTS 2019
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

The ratio of angular speed of moon around the Earth to its angular speed about its own axis is:

NUMS Mock 3
Physics
Circular Motion and Momentum

Mass flow per second of the fluid is given by:

UHS 2015
Physics
Fluid Dynamics
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

If the spring is halved, the new spring constant of each part will be:

Astronomers calculate speed of distant stars and galaxies using which of the following phenomena:

PMC 2020
Physics
Wave Motion and Sound
Elimination Tool:

During isothermal process which of the following remains constant:

An object having spherical shape of radius ‘r’ experiences a retarding force F from a fluid of coefficient of viscosity ‘η’ when moving through the fluid with speed ‘v’. What is the ratio of retarding force to speed?

UHS 2011
Physics
Fluid Dynamics
Elimination Tool:

The power of a concave lens is

Half wave voltage multiplier can provide any degree of voltage multiplication by cascading diodes and capacitors.

PMC Practice 12
Physics
Electronics
Elimination Tool:

Unit of magnetic flux density is

If a half-wave rectifier is used to convert 50 Hz AC into DC, then the number of pulses present in the rectifier voltage is:

PMC Practice 2
Physics
Alternating Current
Elimination Tool:

White light gives spectrum after undergoing:

PMC Sample 2
Physics
Dawn of Modern Physics
Elimination Tool:

if particles are displaced In direction perpendicular to waves then waves are? a)

In which of the following medium will the speed of sound be maximum?

If a dielectric material is placed between two plates of a capacitor, the net capacitance of the capacitor:

NUMS Mock 4
Physics
Electrostatics

Which of the following waves has highest speed?

The anti-particle of quark is _________.

PMC Practice 5
Physics
Atomic Spectra
Elimination Tool:

Escape velocity of Neptune is:

Which of the following has highest ionizing power and least penetrating power?

When frequency of applied periodic Force is equal to the natural frequency of harmonic oscillator then the _______ of oscillator _____.

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

A sound wave travels with a speed of 330ms−1 in air. If the wavelength of the wave is 3.3m, then the frequency of the wave is ______.

PMC Sample 2
Physics
Wave Motion and Sound
Elimination Tool:

In a periodic wave, the distance between second and fifth crests is 15 cm, what is the wavelength of the wave?

PMC Sample 1
Physics
Wave Motion and Sound
Elimination Tool:

Four particles independently move at the same speed in a direction perpendicular to the same magnetic field. Which particle is deflected the most?

NTS 2017
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

Which of the following is the percentage of the original quantity of a radioactive material left after five half–lives approximately.

NUMS 2016
Physics
Nuclear Physics
Elimination Tool:

How much more thumb pressure must a nurse use to administer an injection with a hypodermic needle of inside diameter 0.30 mm compared to one with inside diameter 0.60 mm? Assume that the two needles have the same length and that the volume flow rate is the same in both cases.

NUMS Mock 1
Physics
Fluid Dynamics

As the temperature of the black body is raised, the black body radiations become richer in:

NUMS 2015
Physics
Heat and Thermodynamics
Elimination Tool:

Js is the unit of:

If an ideal gas has volume V at 27 C and it is heated at constant pressure so that its volume becomes 1.5 V, then the value of final temperature is:

NUMS 2018
Physics
Heat and Thermodynamics
Elimination Tool:

A cyclist is moving towards the right with an acceleration of 4m/sec2. At t=0, he has traveled 5m moving towards the right at 15 m/sec. What will be his position at t = 2 seconds?

NTS 2018
Physics
Forces and Motion
Elimination Tool:

Species of the same element that have the same atomic number “Z” but have different mass number “A” are called ____ of that element.

NUMS 2017
Physics
Nuclear Physics
Elimination Tool:

Reactance of an Inductor Is given by:

The time period of a wave is 1/4 sec. How long does it take 20 complete waves to pass a point?

PMC Sample 1
Physics
Wave Motion and Sound
Elimination Tool:

A square coil of 16 cm has 200 turns and rotates in a uniform magnetic field of magnitude 0.05 T. If the peak emf is 12 V, what is the angular velocity of the coil?

NUMS 2015
Physics
Circular Motion and Momentum
Elimination Tool:

What will be the position of the object, when a convex lens of focal length 20 cm, is used to form an erect image which is twice as large as the object?

NTS 2016 DUHS & JSMU
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

in an organ pipe if one side is closed, then it is proved that harmonics released will be

The dimensions of momentum are the same as that of:

PMC 2021 Tested
Physics
Forces and Motion
Measurements
Elimination Tool:

If 60 capacitors each of Capacitance C are connected in series and then in parallel what is the ratio of Cs/Cp=?

While using radiation therapy, cancerous thyroid is treated with ____ radioisotope:

PMC 2020
Physics
Nuclear Physics
Elimination Tool:

A progressive wave moving along the X axis is represented by y = [(2 π / λ – x)]. The wavelength at which the maximum particle velocity is 3 times the wave velocity is:

NUMS 2014
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

A charge is situated in the center of cube. The electric flux through one of the faces of the cube is.

The number of LED segments used in a calculator display:

NUMS 2015
Physics
Dawn of Modern Physics
Elimination Tool:

A circuit that adds positive or negative D.C. voltage to an input sine wave is called:

PMC Practice 4
Physics
Alternating Current
Elimination Tool: