If two point charges of charge q1 and q2 are placed at distance d, then the force between them is proportional to:

PMC Sample 1
Physics
Electrostatics
Elimination Tool:

The output voltage of a rectifier is:

PMC Practice 4
Physics
Alternating Current
Elimination Tool:

A force which is experienced in a magnetic field depends on:

NTS 2011
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

For the first time in 1914, Henry Moseley used X-rays for the determination of:

NTS 2018
Chemistry
Atomic Spectra
Elimination Tool:

n which of the following more heat energy is produced?

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:

A spectrometer is used to find.

Which of the following particles has greater wavelengths having the same velocity?

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

If placed in contact, the focal length of the combination of two convex lenses of equal focal lengths f,
will be

If two inductors each of Inductance L are Introduced in a circuit in parallel, the equivalent Inductance will be:

In elastic collision

When interference between thin films occurs, the path difference between two interfering rays is 2t. If ‘n’ is the refractive index of the medium, the bright circles are obtained when ________ with m = 0, 1, 2, 3, …

NUMS 2019 Reconduct
Physics
Electromagnetic Waves
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:

The force between two point charges separated by a certain distance is F. If each charge is doubled and the distance between them is also doubled, then the force would be:

PMC Sample 1
Physics
Electrostatics
Elimination Tool:

The angular velocity of a rotating disk increases from 2 rad/s to 5 rad/s in 0.5s. What is the disk’s average angular acceleration?

NTS 2015 SMBBMC
Physics
Circular Motion and Momentum
Elimination Tool:

If μ is the permeability of the medium and ∈ permittivity of the medium then the value of √ 1 / μ . ∈. Is equal to ______.

NTS 2019
Physics
Wave Motion and Sound
Elimination Tool:

If both inputs “A” and “B” are ON and the output is also ON. This type of gate is known as:

NUMS Mock 2
Physics
Electronics

The SI unit of mass is?

Spectra corresponding to the sodium vapour lamp is:

PMC Practice 5
Physics
Atomic Spectra
Elimination Tool:

potential difference in charge between two points in a circuit is known as?

A sound wave with a frequency of 343 Hz travels through the air. What is its wavelength? (speed of sound through air = 343 m/s)

NTS 2014
Physics
Wave Motion and Sound
Elimination Tool:

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

NUMS Mock 1
Physics
Oscillations and Simple Harmonic Motion

For the horizontal pipe, the fluid inside it is flowing horizontally then Bernoulli’s
equation can be written as

UHS 2014
Physics
Fluid Dynamics
Elimination Tool:

The phase angle between two points in a medium is 3π/4. If the distance between these points is 20 cm, then the wavelength of the wave is?

NUMS Mock 3
Physics
Wave Motion and Sound

The bicycle pump works on the basis of:

NUMS 2020
Physics
Heat and Thermodynamics
Elimination Tool:

If the wavelength of K X-ray from Cu is 1.337 x 10-10m, then the energy difference between two levels from which transition results will be:

NUMS 2019 Cancelled
Physics
Atomic Spectra
Elimination Tool:

If a wire having current 10A has a 3T magnetic field, what will be the magnetic field at a point from the wire at double the distance?

NUMS 2016
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

Fluorescence is produced when cathode rays strike on:

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

An object of mass 2kg has a velocity of 6m/s. After 8 seconds, its velocity increases to 10 m/s.
Calculate the power of the object

The phenomenon by which light travels in an optical fibres is:

NUMS 2016
Physics
Optics, Nature of Light and Optical Instruments
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:

If a body A is charged with charge q, and is touched with neutral body B and then with neutral body C. What will be the charge on C after the contact?

If the ionization energy of hydrogen atom is 13.6 eV, its ionization potential will be

PMC Sample 3
Physics
Atomic Spectra
Elimination Tool:

In a double slit experiment, two slits are 0.2 mm apart with a screen at a distance of 1m. The third bright fringe is found to be displaced at a distance of 7.5 mm from the central fringe. What is the value of the wavelength?

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

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

NTS 2019
Physics
Atomic Spectra
Elimination Tool:

In which of the following case(s) the work done be positive?

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 2019 Reconduct
Physics
Current Electricity
Elimination Tool:

Which set of the prefixes gives values in increasing order?

UHS 2014
Physics
Measurements
Elimination Tool:

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:

An astronomical telescope has Magnifying power 5. If the focal length is 20 cm then what is the focal length of the objective?

NUMS Mock 2
Physics
Optics, Nature of Light and Optical Instruments

Electric Generators work on the principle of:

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

NTS 2019
Physics
Electrostatics
Elimination Tool:

A box of mass m = 6 kg slides with speed v = 4 m/s across a frictionless floor. It suddenly explodes into two pieces. One-piece, with mass m1= 2 kg moves in the same direction with speed v1= 8 m/s . Find the velocity of the second piece.

NTS 2013
Physics
Motion in Two Dimensions
Elimination Tool:

Radioactive elements emit:

NUMS Mock 2
Physics
Nuclear Physics

The expression dp/dt represents

During isothermal process which of the following remains constant:

An emf of 120 volts of negligible internal resistance is connected across a resistance of 1000 ohm. The current flowing through the circuit will be:

NUMS 2015
Physics
Current Electricity
Elimination Tool:

When a charge Q on a capacitor is doubled, then energy stored U will be:

NUMS 2020
Physics
Electrostatics
Elimination Tool:

A battery has an e.m.f of 6.0 volts and an internal resistance of 0.4 ohms. It is connected to a 2.6 ohms resistor through a SPST (single pole, single throw switch).

When the switch is open, the potential difference between the terminal of the battery is:

NTS 2010
Physics
Current Electricity
Elimination Tool:

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

NUMS 2019 Reconduct
Physics
Electrostatics
Elimination Tool:

Charge on an up-quark is:

22320 cal heat is supplied to 100g of ice at zero degree centigrade. If the latent heat of fusion of ice is 80 cal /g and latent heat of vaporization of water is 540 cal/g the final amount of water thus obtained and its temperature respectively are:

NUMS 2014
Physics
Heat and Thermodynamics
Elimination Tool:

A semiconductor photodiode is a:

NTS 2011
Physics
Electronics
Elimination Tool:

When describing the isotopes of the same element, the most accurate statement is that they have:

NTS 2017
Physics
Atomic Spectra
Elimination Tool:

.Light can be polarized by which of the following methods?

I. scattering of light

II. double refraction

III. reflection

NTS 2014
Physics
Optics, Nature of Light and Optical Instruments
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:

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

NUMS 2019 Reconduct
Physics
Oscillations and Simple Harmonic Motion
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:

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:

The frequency of applied AC is 2 kHz. Its time period will be:

PMC Practice 3
Physics
Alternating Current
Elimination Tool:

A uniform wire of resistance 3 ohm is folded in such a way that it forms an equilateral triangle, then what is it’s resistance across the ends of any two vertices?

NUMS Mock 1
Physics
Current Electricity

A thermocouple is immersed in water at 373 K and the other in ice at 273K. The emf of the thermocouple Is 90 (μ)V for each 1 K difference in temperature between junctions, and the thermocouple resistance is 6 Ω. What current will flow in the galvanometer connected in series with an internal resistance of 30ohms?

NTS 2010
Physics
Heat and Thermodynamics
Current Electricity
Elimination Tool:

If two sounds have the same wavelength in air at the same temperature, what other property must they also have in common?

Intensity
Amplitude
Frequency
NTS 2017
Physics
Wave Motion and Sound
Elimination Tool:

In motion of satellites, necessary centripetal force is provided by:

NUMS Mock 1
Physics
Circular Motion and Momentum

if electron is moving along positive x axis and where V= Sx*3 then it

Energy of fast moving neutron Is?

The time period of a seconds pendulum on the surface of moon becomes:

NUMS Mock 3
Physics
Oscillations and Simple Harmonic Motion

A row of 25 decorative lights, connected in series, is connected to a main transformer. When the supply is switched on, the lights do not work. The owner uses a voltmeter to test the circuit. When the voltmeter is connected across the third bulb in the row, a reading of zero is obtained. Which of the following cannot be the only fault in the circuit?

NTS 2017
Physics
Current Electricity
Elimination Tool:

Q²/C has the units of?

The total energy of a block, executing simple harmonic motion is:

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

If a proton, alpha particle, and photon moving with the same velocity enter a uniform magnetic field, then which particle will deflect more?

PMC Practice 3
Physics
Atomic Spectra
Elimination Tool:

Laws of motion describes?

Technique for detecting the pressure of objects under water by acoustical echo is called:

NUMS 2018
Physics
Wave Motion and Sound
Elimination Tool:

The temperature coefficient of normal-conductor is negative because:

NUMS 2020
Physics
Heat and Thermodynamics
Elimination Tool:

SI unit of velocity Is

Centrifugal force Is:

A spring of force constant 800 N/m has an extension of 5 cm, the work done in extending it from 5 cm to 15 cm

PMC Sample 3
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

A vibrator produces 25 waves in 5 seconds. What is its time period?

The object oscillates due to:

PMC Sample 2
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

Which of the following is a unit of Work?

Dioptre power of an concave lens of 10 cm focal length is

Energy stored in capacitors connected in parallel

The power of an electric bulb is 100W. It is connected to 110V power supply. The resistance of electric bulb will be?

NUMS 2020
Physics
Current Electricity
Elimination Tool:

The deviation of I-V graph from straight line is due to:

NUMS 2016
Physics
Current Electricity
Elimination Tool:

If the actual weight of a person standing in an elevator is 75N, and the apparent weight in the accelerated elevator is 105N, find the acceleration and direction of elevator motion. (Use g 10 m/s2)

Chromatic aberration can be removed by using

If a wave can be polarized, it means, it is:

NUMS 2016
Physics
Wave Motion and Sound
Elimination Tool:

A body moves on a circular path subtending an angle of 2 radians at the center of a circle of radius 3.5 meters. The linear displacement of the body is _________.

NUMS 2019 Reconduct
Physics
Circular Motion and Momentum
Elimination Tool:

Density of blood is:

NUMS 2016
Physics
Fluid Dynamics
Elimination Tool:

In Compton’s effect the wavelength of the scattered photon is

When the antinodes, in stationary waves, are passing through their equilibrium position, the energy is:

NUMS Mock 2
Physics
Wave Motion and Sound

A current of 2A is passing through an inductor of 2mH. Energy stored by it is:

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

The SI unit of magnetic flux is Weber which is equivalent to:

NUMS 2019 Reconduct
Physics
Magnetism and Electromagnetic Induction
Elimination Tool: