Mass flow per second of the fluid is given by:

UHS 2015
Physics
Fluid Dynamics
Elimination Tool:

Speed of sound in vacuum is:

Nucleus with an excess of neutrons may decay radioactivity with the emission of:

NTS 2017
Physics
Nuclear Physics
Elimination Tool:

Bragg’s Law for measurement of wavelength à. of i-rays, using crystal lattice planes having distance d between each other, for constructive interference for integral multiple of i is.

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

The energy supplied by the cell to the charge carriers is derived from the conversion of:

NUMS Mock 4
Physics
Electrostatics

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 is ________ in g cm / s.

NTS 2016 DUHS & JSMU
Physics
Circular Motion and Momentum
Elimination Tool:

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:

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:

if 5.1 and 3.014 added. the number of significant figures will be in final answer

If N, m, V and c represent the number of molecules, mass of a molecule, volume of cubical container and speed of a molecule respectively then by using the method dimensions, check which of the following expressions represents the pressure (p) of a gas?

NUMS 2019 Cancelled
Physics
Heat and Thermodynamics
Elimination Tool:

A body of mass of 2kg absorbed 10 J of radioactive radiations. The absorbed dose of radiation in rad is:

NUMS Mock 1
Physics
Nuclear Physics

An electron is placed between two charged plates the upper plate is positively charged and the lower plate is negative charged. The electron will

Two bodies are projected at an angle of ɑ and (90 – θ) to the horizontal with the same speed. The ratio between their time of flight is:

NUMS 2019 Cancelled
Physics
Motion in Two Dimensions
Elimination Tool:

R1 and R2 are two-position vectors making angles θ1 and θ2 with positive X-axis respectively. Their vector product is:

[R1 = 4 cm, R2 = 3 cm , e1 = 30 degrees , e2 = 90 ]

NTS 2011
Physics
Scalars and Vectors
Elimination Tool:

An electron enters in a magnetic field at an angle less than 90 degrees with magnetic field. Which of the following path is followed by an electron?

NUMS 2014
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The vector product of two vectors A and B is ____ vectors A and B.

NTS 2019
Physics
Scalars and Vectors
Elimination Tool:

What will be the energy of electron travelling at 10^7 m/s

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

NUMS Mock 1
Physics
Forces and Motion

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

Newton’s 3rd law of motion is for bodies that are

Fluorescence is produced when cathode rays strike on:

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

Change in entropy does not depend on:

NUMS Mock 3
Physics
Heat and Thermodynamics

The use of a capacitor filter in a rectifier circuit gives satisfactory performance only when the load:

PMC Practice 3
Physics
Alternating Current
Elimination Tool:

Ratio of velocity of sound in oxygen as compared to hydrogen is

What is the quark composition of a Proton?

NUMS Mock 2
Physics
Nuclear Physics

Nuclear fission reaction takes place In controlled conditions by the

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?

Law of heat exchange is used to determine:

NTS 2018
Physics
Heat and Thermodynamics
Elimination Tool:

Energy stored in capacitor is represented by.

If A = B + C and A, B, C have scalar magnitudes of 5, 4, 3 units respectively then the angle between vector A and Vector C is:

NUMS 2014
Physics
Scalars and Vectors
Elimination Tool:

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

PMC Practice 10
Physics
Electronics
Elimination Tool:

A car starts from rest and moves with a constant acceleration. During the 5th second of its motion, it covers a distance of 36 meters. What is the acceleration of the car?

NTS 2011
Physics
Motion in Two Dimensions
Elimination Tool:

If ‘0.8 i + 0.5 j + ck’ represents a unit vector, the value of ‘c’ is:

NUMS 2019 Cancelled
Physics
Scalars and Vectors
Elimination Tool:

A bar magnet has a magnetic moment 200 Am2. The magnet is suspended in a magnetic field of 0.30 NA-1m-1. The torque required to rotate the magnet from its equilibrium position at an angle of 30˚ will be:

NUMS 2014
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

A bulb having a resistance of 150 Ω is connected to a 225 volt source, the current in the bulb will be:

NTS 2012
Physics
Current Electricity
Elimination Tool:

for normal adjustment, length of astronomical telescope is

{j * j}.i

A 3-cm length of wire is moved at right angles across a uniform magnetic field with a speed of 2.0 m/s . If the flux density is 5.0 teslas, what is the magnitude of the induced e.m.f?

NTS 2016 DUHS & JSMU
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

Moment of inertia of a sphere is:

The maximum efficiency of a half-wave rectifier is:

PMC Practice 3
Physics
Alternating Current
Elimination Tool:

A spring in SHM oscillates between -A and A with time period T. If the spring starts from mean position and moves towards A, at what time will it be at a distance of A/2 from the mean position?

X-rays are also known as:

NTS 2015 DUHS and JSMU
Physics
Atomic Spectra
Elimination Tool:

Which of following has greatest energy

A body moving with velocity V can be stopped by a force F in direction of it. The same body moving with velocity 5 V can be stopped by a force 5F in distance equal to:

NUMS 2017
Physics
Forces and Motion
Elimination Tool:

When reverse bias of a p-n junction diode is increased, a stage comes when electric field set up is sufficient to rupture covalent bonds and release a large number of holes and electrons. This breakdown phenomenon is known as:

NUMS 2018
Physics
Electronics
Elimination Tool:

The principle of an AC generator is.

NTS 2019
Physics
Alternating Current
Elimination Tool:

Calculate the energy of a photon, with a frequency of 3.0 x 1018 Hz.
(h = 6.63 x 10-34)

UHS 2019
Physics
Dawn of Modern Physics
Elimination Tool:

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

NTS 2011
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

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

What will be impact on the frequency of a simple pendulum if the length of pendulum is halved
and value of gravity is doubled?

What is dimension of coefficient of viscosity?

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:

X rays are similar in nature to:

NUMS 2018
Physics
Atomic Spectra
Elimination Tool:

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

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

NUMS Mock 1
Physics
Oscillations and Simple Harmonic Motion

Impedance of a circuit Is calculated as:

Which of the following statement is true? i) Toroid is a solenoid bent into circular path ii) Solenoid is a tarok’ in open

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:

An aeroplane is flying in a straight line at a constant altitude. If a wing gust strikes and raises the nose of the airplane, the nose will bob up and down until the plane eventually returns to its original position. These oscillations are:

NUMS Mock 3
Physics
Oscillations and Simple Harmonic Motion

Alpha, Beta, and Gamma radiations are emitted from a radioactive substance:

NUMS 2017
Physics
Nuclear Physics
Elimination Tool:

Which of the following field is dependent on the path?

For a satellite so that it could stay over the same point on Earth’s surface the orbital radius r is given by ________.

NUMS 2019 Reconduct
Physics
Gravitation
Elimination Tool:

Compression of gas under constant temperature is process:

When a fluid is incompressible, it means:

FMDC 2018
Physics
Physics of Solids
Elimination Tool:

A handball is tossed vertically upward with a velocity of 19.6 m/s. Approximately how high will it rise?

NTS 2016 DUHS & JSMU
Physics
Circular Motion and Momentum
Elimination Tool:

On the ground, the gravitational force on a satellite is W. What is the gravitational force on the satellite when at a height R/50, where R is the radius of the Earth?

NTS 2013
Physics
Gravitation
Elimination Tool:

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

NUMS Mock 3
Physics
Oscillations and Simple Harmonic Motion

In E = aT4  E stands for??

A transistor cannot be used as

An alpha particle is ejected from the nucleus of an atom. Which of the following answers describes the change in the nucleus of the atom?

NUMS Mock 3
Physics
Nuclear Physics

______ 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:

If modulated signal frequency is represented by fm, carrier frequency by fc, fmin and fmax represent minimum and maximum values respectively, then the lower sideband refers to the range:

NTS 2016 SMBBMC
Physics
Wave Motion and Sound
Elimination Tool:

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

NUMS Mock 1
Physics
Oscillations and Simple Harmonic Motion

The entropy of the universe always:

NUMS 2016
Physics
Heat and Thermodynamics
Elimination Tool:

F = I L B, What Is relation between I and L

Gamma rays are emitted from nuclei of radioactive atoms. They are nothing but:

NTS 2016 DUHS & JSMU
Physics
Nuclear Physics
Elimination Tool:

(1, 1, 1) • (2, 2, 2) =

The value of universal constant “R” is:

NUMS 2016
Physics
Heat and Thermodynamics
Elimination Tool:

If Ns/Np is the turn ratio, then for step up transformer

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

NUMS 2015
Physics
Heat and Thermodynamics
Elimination Tool:

The points which are in phase are separated from one another through a distance of :

PMC Sample 1
Physics
Wave Motion and Sound
Elimination Tool:

For one mole of gas, the relation for specific heat capacity at constant pressure ‘Cp’ and at constant volume ‘Cv’ is ________.

NUMS Mock 1
Physics
Heat and Thermodynamics

Unit of electric field is:

Calculate the final kinetic energy when a shop keeper pushes a fruit crate, initially at rest, towards another shopkeeper by exerting a constant horizontal force F of magnitude 5N through a distance of 1 meter.

NTS 2015 DUHS and JSMU
Physics
Work, Power and Energy
Elimination Tool:

When the drag force is equal to the weight of the droplet, the droplet will fall with:

UHS 2011
Physics
Fluid Dynamics
Elimination Tool:

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

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

Which of the following statements is True about the A.0 and D.0 Generators?

Weber x ampere per meter is equal to:

NUMS 2016
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The K.E. of a body of mass 2kg and momentum of 2N is:

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