The direction of the magnetic line of force depends upon:

NUMS Mock 2
Physics
Magnetism and Electromagnetic Induction

When a fluid is incompressible, it means:

FMDC 2018
Physics
Physics of Solids
Elimination Tool:

Which of the following is a conservative field?

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

PMC 2020
Physics
Wave Motion and Sound
Elimination Tool:

In a scanning electron microscope, image formed is:

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

The path difference for the constructive interference is:

NUMS 2018
Physics
Wave Motion and Sound
Elimination Tool:

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

Laser beam can be used to generate three dimensional objects in a process called:

NUMS Mock 1
Physics
Optics, Nature of Light and Optical Instruments

Which material is used as common conductor In daily use?

If stress is applied on a body then the ratio of change in volume to original volume will be:

NUMS 2016
Physics
Physics of Solids
Elimination Tool:

Work is a

PMC Sample 2
Physics
Scalars and Vectors
Elimination Tool:

Power factor of the pure capacitive circuit is?

Momentum of a photon is?

PMC Practice 2
Physics
Dawn of Modern Physics
Elimination Tool:

If a face acts on a body for 2 sec and its rate of change of momentum is 50, the force acting on the body is:

The least distance of distinct vision for normal eye is approximately

An electromagnetic wave travels in a straight line through a vacuum. The wave has a frequency of 6.0 THz. What is the number of wavelengths in a distance of 1.0 m along the wave?

ETEA 2018
Physics
Electromagnetic Waves
Elimination Tool:

Which of the following can be the objective of Polarization:

1 light year distance is the:

PMC Practice 5
Physics
Measurements
Elimination Tool:

A steel rod has a length of 15 m at a temperature of 30°C. If the temperature is raised to 45°C. The increase in its length is:

(α= 1.1 x 10-5 K-1)

NTS 2014
Physics
Heat and Thermodynamics
Elimination Tool:

Compression of gas under constant temperature is process:

If the speed of an object is doubled, its Kinetic Energy will

Which measure Is nearest to your height?

For an ideal step-up transformer Ps ——- Pp.

PMC Practice 8
Physics
Alternating Current
Elimination Tool:

If the input frequency of a full-wave rectifier is 50 Hz, its ripple frequency is:

PMC 2021 Tested
Physics
Electronics
Elimination Tool:

If T is to be increased to 37 then length of pendulum should be increased by:

A car starts from rest and moves with constant acceleration. During the 4th second of its motion, it covers a distance of 21 meters. The acceleration of the car is _____ m.

NTS 2019
Physics
Motion in Two Dimensions
Elimination Tool:

Spectra corresponding to the sodium vapour lamp is:

PMC Practice 5
Physics
Atomic Spectra
Elimination Tool:

A Black body is?

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

NUMS Mock 4
Physics
Electrostatics

Energy consumed by 60 watt bulb in 2 minutes is equal to:

UHS 2018
Physics
Work, Power and Energy
Elimination Tool:

In a certain circuit, a transistor has a collector current of 10mA and a base current of 40μA. What is the current gain of the transistor?

NTS 2015 DUHS and JSMU
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

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:

Seconds pendulum has time period

A mass has constant acceleration, what is true about the force applied on it?

NUMS Mock 1
Physics
Forces and Motion

Unit of induced emf is

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:

Temperature co-efficient of resistance is:

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

To get a peak load voltage of 40V out of a bridge rectifier, what should be the approximate rms value of secondary voltage?

PMC Practice 5
Physics
Electronics
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:

UHS 2018
Physics
Wave Motion and Sound
Oscillations and Simple Harmonic Motion
Elimination Tool:

A parallel beam of white light is incident normally on a diffraction grating. It is noted that the second-order and third-order spectra partially overlap. Which wavelength in the third-order spectrum appears at the same angle as the wavelength of 600 nm in the second-order spectrum?

NTS 2013
Physics
Optics, Nature of Light and Optical Instruments
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:

Induced emf depends upon:

By increasing the area of the plates and decreasing the distance between them, the capacitance of a capacitor:

NUMS Mock 3
Physics
Electrostatics

The torque will be greater if:

NTS 2011
Physics
Circular Motion and Momentum
Elimination Tool:

Charge on an up-quark is:

Product of Force and Time Is

All of the following is/are scalar quantities except:

NTS 2011
Physics
Scalars and Vectors
Elimination Tool:

An angular velocity of 60 revolutions per minute is the same as:

PMC Practice 4
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

The electron current is chiefly due to:

NUMS 2016
Physics
Wave Motion and Sound
Elimination Tool:

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

UHS 2019
Physics
Dawn of Modern Physics
Elimination Tool:

If 500 cm3 of gas, having a pressure of 760 millimeters of mercury, is compressed into a volume of 300 cm3. If the temperature remains constant, the pressure of the gas will be, in millimeters of mercury, approximately:

NTS 2017
Physics
Fluid Dynamics
Elimination Tool:

Radioactive elements emit:

NUMS 2017
Physics
Nuclear Physics
Elimination Tool:

The velocity of an object increases from 0 to 10 m/s in 2 seconds. The distance covered by the object is _________.

NUMS Mock 2
Physics
Motion in Two Dimensions

If momentum is increased by 20% then K.E. increases by :

PMC Sample 2
Physics
Circular Motion and Momentum
Elimination Tool:

A pendulum is placed at Lahore, Murree, and K2. At which location will the frequency of Pendulum be maximum?

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

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

For gaining an atomic spectra, an evacuated glass tube is filled with:

NUMS 2020
Physics
Atomic Spectra
Elimination Tool:

If a certain region’s magnetic field is directed vertically up and a proton enters this field from the left side, it will go _________.

NUMS 2019 Reconduct
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The de Broglie wavelength of an electron travelling with a speed of 1.0 x 107m/s is equal to, (h=6.6 x 10-34 Js and me= 9.1 x 10-31 kg)

UHS 2018
Physics
Dawn of Modern Physics
Elimination Tool:

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

NUMS 2020
Physics
Electrostatics
Elimination Tool:

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

Einstein was given a Nobel prize for:

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

The volume of a gas at constant pressure increases by 2% when the temperature is increased by 5 K, It’s initial temperature is:

NUMS 2016
Physics
Physics of Solids
Elimination Tool:

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:

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

NUMS 2016
Physics
Wave Motion and Sound
Elimination Tool:

Which of the following types of force can do no work on the body on which it operates?

NTS 2016 SMBBMC
Physics
Forces and Motion
Elimination Tool:

Radiations emitted by human body lie in which of the following series?

A maintenance crew is working on a section of a three-lane highway with only one lane open to traffic. This result is much slower traffic flow. The cars on this highway behave like:

NUMS 2015
Physics
Fluid Dynamics
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:

If the current in the wire is directed into the page, and the wire is held perpendicular to the page, then the direction of magnetic circles will be:

The interference of green photon to red photon will cause:

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

1 degree Is equal to radians

In CRO, electrons are emitted from:

What are the Dimensions of P^2/m, where P is the momentum and m is the mass?

How much energy is dissipated as heat in 20 s by a 100 Ω resistor that carries a current of 0.5 A?

NTS 2014
Physics
Current Electricity
Elimination Tool:

A parallel plate capacitor has a capacitance C. If the distance between the two plates is halved, the capacitance will be?

NUMS Mock 3
Physics
Electrostatics

Trough of a wave acts as:

NUMS 2020
Physics
Wave Motion and Sound
Elimination Tool:

When photons are incident on a metal, electrons are emitted. The process is called:

NTS 2016 SMBBMC
Physics
Dawn of Modern Physics
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:

Value of resistivity of iron Is

Law of conservation of momentum states that:

I. there is no external force applied to a system, then the total momentum of that system remains constant

II. if there is an external force applied to a system, then the total momentum of that system remains constant

III. if there is no external force applied to a system, then the total momentum of that system keeps changing

NTS 2011
Physics
Circular Motion and Momentum
Elimination Tool:

The electron shows purely a ____ when free.

PMC Sample 2
Physics
Dawn of Modern Physics
Elimination Tool:

In SI units, the unit of Candela is used for the measurement of:

NTS 2016 DUHS & JSMU
Physics
Measurements
Elimination Tool:

Density of blood is:

NUMS 2016
Physics
Fluid Dynamics
Elimination Tool:

If a 2 µF capacitor is connected, by closing a switch, to a supply of 100 volts through  1M ohm  series resistance. What will be the time constant?

if v is the velocity of an object, then the following equation is always:

[1-v²/c²]^-0.25

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:

Formation of colours in a thin film of oil is due to:

NTS 2015 SMBBMC
Physics
Optics, Nature of Light and Optical Instruments
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 2015
Physics
Fluid Dynamics
Elimination Tool:

PIV stands for :

PMC 2020
Physics
Alternating Current
Elimination Tool:

At resonance, the RLC circuit behaves like: