In a circuit, there is a current of 5 amp which is changed such that the current falls to zero in 0.1 sec. If an average e.m.f. of 200 volts is induced, the self-inductance of the circuit will be:

NTS 2012
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The newton-second is the unit of:

PMC 2020
Physics
Circular Motion and Momentum
Elimination Tool:

If a substance can undergo plastic deformation, until it breaks, it is:

NUMS 2016
Physics
Physics of Solids
Elimination Tool:

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:

The nature of the force of gravitation in the universe is:

NTS 2016 SMBBMC
Physics
Gravitation
Elimination Tool:

Conversion of heat energy completely into work violates:

NUMS 2014
Physics
Heat and Thermodynamics
Elimination Tool:

Stokes’ Law for steady motion in a fluid of infinite extent is given by:

UHS 2012
Physics
Fluid Dynamics
Elimination Tool:

If speed of a fan in a room is Increased then the temperature of air in the room will

Equation of continuity is expressed as:

NUMS 2018
Physics
Fluid Dynamics
Elimination Tool:

A 3 kg stone falls from a 20m high platform. Find its falling speed at 10 m height.

NUMS 2020
Physics
Forces and Motion
Elimination Tool:

When the source moves towards an observer the frequency of waves as perceived by observer:

An object whose mass is 100 g starts from rest and moves with constant acceleration of 20 cm/s2. At the end of 8s its momentum in g cm / s is:

NTS 2016 SMBBMC
Physics
Work, Power and Energy
Elimination Tool:

When a charged particle is projected perpendicular to a magnetic field:

NUMS 2016
Physics
Electrostatics
Elimination Tool:

Change in entropy does not depend on:

NUMS Mock 3
Physics
Heat and Thermodynamics

Two positive charges are separated by 3m. Another positive charge is placed between them. If the charge is moved along y axis the system will be in equilibrium

A particle having mass m and momentum p, the kinetic energy of the particle is given by:

PMC Sample 3
Physics
Work, Power and Energy
Elimination Tool:

White light gives spectrum after undergoing:

PMC Sample 2
Physics
Dawn of Modern Physics
Elimination Tool:

A body Is dropped from a height 175m, how much time will it take to reach the ground?

The unit of the product of RC in the charging of a capacitor Is:

Laplace’s correction to Newton’s formula is based on the fact that the compressions and rarefactions occur as ______.

NTS 2019
Physics
Wave Motion and Sound
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:

The magnitude of electrostatic acceleration force between two point charges is directly proportional to the product of the magnitude of the charges and inversely proportional to the square of the distance between them.” This is known as:

NTS 2015 SMBBMC
Physics
Electrostatics
Elimination Tool:

Trough of a wave acts as:

NUMS 2020
Physics
Wave Motion and Sound
Elimination Tool:

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:

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:

To determine Young’s modulus of a material of a given wire of length ? we use:

ETEA 2018
Physics
Physics of Solids
Elimination Tool:

An automobile is moving forwards with uniform velocity due to the force exerted by its engine. If the force is doubled with the velocity remaining constant what happens to its total power?

NUMS Mock 4
Physics
Work, Power and Energy

20 waves pass through a point in a medium, in 5 seconds. What is the time required for one wave to pass?

PMC Sample 2
Physics
Wave Motion and Sound
Elimination Tool:

An element whose atomic number is same but mass number is different is called:

NUMS Mock 4
Physics
Nuclear Physics

Electron Volt is the unit of:

PMC Sample 1
Physics
Electrostatics
Elimination Tool:

Let L be the length and d be the diameter of the cross section of a wire. Wires of the same material with different L and d are subjected to the same tension along the length of the wire. In which of the following cases the extension of wire will be the maximum?

NUMS 2014
Physics
Physics of Solids
Elimination Tool:

A spectrometer is used to find.

The range Of the projectile depends upon the velocity of the projection and the angle of the projection i.e 45. For a fixed velocity, when the angle of projection is larger than 45. Which of the following is correct?

UHS 2019
Physics
Motion in Two Dimensions
Elimination Tool:

If peak voltage across a full wave rectifier is 20V then Vrms is:

PMC Practice 10
Physics
Electronics
Elimination Tool:

Speed and Pressure relation of a fluid is given by:

The spin of a photon is:

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

1 kilowatt hour =

NUMS 2020
Physics
Work, Power and Energy
Elimination Tool:

If magnitude of charges is doubled and distance between them is halved, the force between them will become?

What is the speed of 2.0 kg metallic bob at the mean position of a simple pendulum, when released from its extreme position 0.5m high? (g = 10 ms-2)

PMC 2020
Physics
Work, Power and Energy
Elimination Tool:

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

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

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

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:

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?

What is true about the electric field and electric force?

NUMS 2016
Physics
Electrostatics
Elimination Tool:

The maximum Compton shift Is at

Which of the following is not a base unit in the SI system?

NTS 2016 SMBBMC
Physics
Measurements
Elimination Tool:

The electron current is chiefly due to:

NUMS 2016
Physics
Wave Motion and Sound
Elimination Tool:

When the output power equals to one-half of the input power, efficiency of the transformer becomes:

NUMS 2015
Physics
Work, Power and Energy
Elimination Tool:

When a source is moving towards a stationary observer, the apparent change in frequency will be:

NUMS 2018
Physics
Wave Motion and Sound
Elimination Tool:

Which gas is not used in GM counter?

Consider two capacitors with capacitance 2µF and 4µF. With which type of connection will the 4µF capacitor have a greater amount of stored energy than the 2µF capacitor?

PMC Practice 2
Physics
Alternating Current
Elimination Tool:

A nucleus consists of 11 protons and 12 neutrons. The conventional symbol of nucleus is:

NUMS Mock 3
Physics
Nuclear Physics

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

NUMS 2018
Physics
Physics of Solids
Elimination Tool:

Half wave voltage multipliers can provide what degree of voltage multiplication?

PMC Practice 4
Physics
Alternating Current
Elimination Tool:

Orange light in a vacuum has a wavelength of 600 nm. What is the frequency of this light?

ETEA 2018
Physics
Electromagnetic Waves
Elimination Tool:

Which device is used to measure the potential difference between two points of a conductor in the laboratory?

NUMS 2020
Physics
Current Electricity
Elimination Tool:

Minimum energy required to eject an electron from metal surface is called:

UHS 2019
Physics
Dawn of Modern Physics
Elimination Tool:

If the direction of current in two parallel wires is In opposite direction, then the wires will:

least distance of distinct vision

A football, at rest on the ground, is kicked with an initial velocity of 10 m/s at a launch angle of 30°. Calculate its total flight time, assuming that air resistance is negligible.

NTS 2014
Physics
Motion in Two Dimensions
Elimination Tool:

.A rock is thrown straight upward from the edge of a 30 m cliff, rising 10 m then falling all the way down to the base of the cliff.

Find the rock’s displacement.

NTS 2014
Physics
Motion in Two Dimensions
Elimination Tool:

The minimum distance between an object and its real image in a convex lens is

The uncertainty in momentum and position is due to its:

PMC Sample 1
Physics
Dawn of Modern Physics
Elimination Tool:

The 10 nanofarad (10×10-9 F) parallel plate capacitor holds a charge of magnitude 50uc on each plate. If the plates are separated by a distance of 0.885mm, what is the area of each plate?

NUMS Mock 3
Physics
Electrostatics

If force of 2.5N changes the velocity from 50 m/s to 100m/s in time 50. the mass of the body’

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

A ball is thrown vertically upward with a velocity of 98 m/s. If it takes 10 seconds to reach the highest point then the acceleration of the ball is:

NUMS 2014
Physics
Motion in Two Dimensions
Elimination Tool:

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:

Which of the following statements is not true regarding the Newton’s third law of motion?

NUMS 2016
Physics
Forces and Motion
Elimination Tool:

n which of the following more heat energy is produced?

A hydrogen atom in its ground state absorbs 10.2 eV of energy. What is the orbital angular momentum is increased by?

PMC Sample 3
Physics
Atomic Spectra
Elimination Tool:

In a Young’s double-slit experiment, fringes are very close to each other. How can we increase the distance between fringes?

PMC Practice 1
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

i.(j*k)

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

A circuit in which there is a current of 5 amp is changed so that the current falls to zero in 0.1s. If an average e.m.f of 200 volts is induced, what is the self-inductance of the circuit?

NTS 2014
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The sum of Kinetic energy and the Potential energy is always constant to provide _____ .

NTS 2019
Physics
Work, Power and Energy
Elimination Tool:

RLC circuit can be excited by

The force which will accelerate a 25 kg mass at 98 cm/s2 on a smooth horizontal plane is:

NTS 2016 SMBBMC
Physics
Forces and Motion
Elimination Tool:

The displacement has __________.

PMC Practice 2
Physics
Scalars and Vectors
Elimination Tool:

During isothermal process which of the following remains constant:

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 Mock 4
Physics
Gravitation

What is the projection of E = 2i-3j+6k onto the direction of vector F=i+2j+2k.

NTS 2016 DUHS & JSMU
Physics
Scalars and Vectors
Elimination Tool:

When the ohmmeter measures the infinite resistance, its pointer lies at

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

NTS 2019
Physics
Atomic Spectra
Elimination Tool:

A 4.0 m long wire is subjected to stretching force and its length increases by 40 cm. The percent elongation which the wire undergoes is:

UHS 2013
Physics
Physics of Solids
Elimination Tool:

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

PMC Practice 5
Physics
Atomic Spectra
Elimination Tool:

In heavy nuclei the number of neutrons is than protons

Mutual inductance has a practical role in performance of:

PMC Practice 4
Physics
Alternating Current
Elimination Tool:

If, the speed of waves is 10m/sec and its frequency is 5Hz. Find its wavelength.

NUMS 2016
Physics
Wave Motion and Sound
Elimination Tool:

A person having a mass of 60 kilograms exerts a horizontal force of 200 Newtons in pushing a 90 kilogram object a distance of 6 meters along a horizontal floor. He does this at constant velocity in 3 seconds. The weight of this person approximately, in Newtons, is: (g=9.8m/s2)

NTS 2017
Physics
Forces and Motion
Elimination Tool:

Electric intensity between two plates of a capacitor equals:

Monochromatic light means the light having:

NUMS 2018
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

If Cv= 5/2 R , Cpwill be:

NUMS Mock 3
Physics
Heat and Thermodynamics