Which of the following is the angle of projection of a projectile if its range is equal to its height?

NUMS Mock 1
Physics
Forces and Motion

The spin of a photon is:

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

RLC circuit can be excited by

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:

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?

UHS 2019
Physics
Work, Power and Energy
Elimination Tool:

Light signals passes through multimode graded fibre due to

The different magnitudes of same physical quantities are measured by comparing them to:

NUMS Mock 1
Physics
Measurements

A 2uF capacitor is connected to a 10 V dc supply, if ‘Q’ represents the charge on each plate and ‘E’ the energy stored on each plate, which of the following represents the values of Q and E?

NUMS 2019 Cancelled
Physics
Electrostatics
Elimination Tool:

White light does not focus to a single point after passing through a convex lens due to

A vector having magnitude equal to one is called

What is the instantaneous power dissipated through a resistor of resistance 10 ohm if it is connected to an AC source of frequency 15 Hz at 1/180 sec if peak value is 20 V?

UHS 2018
Physics
Alternating Current
Elimination Tool:

Density of blood is:

NUMS 2016
Physics
Fluid Dynamics
Elimination Tool:

For adiabatic process, the first law of thermodynamics is:

NUMS 2016
Physics
Heat and Thermodynamics
Elimination Tool:

Unit of Angular Momentum? a) Kg m2 s’1b) c) Js-1 d) Both a and b

The maximum instantaneous value measured from zero value is known as?

PMC Sample 3
Physics
Alternating Current
Elimination Tool:

The unit of temperature in base unit is:

UHS 2015
Physics
Measurements
Elimination Tool:

Two bodies ‘X’ and ‘Y’ are attached to the ends of a string which passes over a pulley so that the two bodies hang vertically. If the mass of the body ‘X’ is 10 kg and that of ‘Y’ is 9.8 kg. Find the acceleration? (g = 9.8 m/s2)

NTS 2016 DUHS & JSMU
Physics
Forces and Motion
Elimination Tool:

if a car starts from rest and reaches 20 m/s velocity in 10 s then acceleration is:

PMC Sample 3
Physics
Motion in Two Dimensions
Elimination Tool:

A body of mass 0.5 kg starts from rest (t=0) & experiences a force F. 8i + 6j. What will be its
velocity at t=1 if A covers a distance of 4m?

When a certain metal surface is illuminated with light of frequency v. the stopping potential for photoelectric current is V0. When the same surface is illuminated by light of frequency V/2, the stopping potential is VO-/4. The threshold frequency for photoelectric emission is:

NUMS 2014
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

If voltage of a capacitor is 60 v then what will be the voltage if diamond is present as •dielectric

Electrons are emitted in the production of X rays by:

NUMS 2016
Physics
Atomic Spectra
Elimination Tool:

If A and B arc two vectors, area of parallelogram formed by these vectors will be?

1. a) AB b) A . c) AB cos 0                      d) lAx131

A wire is stretched by a force which causes an extension. The energy is stored in it only when:

UHS 2011
Physics
Physics of Solids
Elimination Tool:

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

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

Assume that you have two balls of Identical volume, one weighing 2 Newtons and the other 10 Newtons. Both are falling freely after being released from the same point simultaneously. Which of the following will then be true:

I. The 10 N ball falling freely from rest will be accelerated at a greater rate than the 2 N ball

II. At the end of the 4s of freefall, the 10 N ball will have 5 times the momentum of the 2 N ball

III. At the end of the 4s of free fall, the 10 N ball will have the same kinetic energy as the 2 N ball

IV. The 10 N ball possesses greater inertia than the 2 N ball

NTS 2010
Physics
Forces and Motion
Elimination Tool:

Lasers are used for producing an intense, ____ and coherent beam of visible light.

NUMS 2017
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

Radioactive elements emit:

NUMS Mock 2
Physics
Nuclear Physics

The centripetal acceleration is maximum when radius r is:

PMC Sample 1
Physics
Circular Motion and Momentum
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:

A steel wire hangs vertically from a fixed point, supporting a weight of 80 N at its lower end. The diameter of the wire is 0.50 mm and its length from the fixed point to the weight is 1.5 m. If density of steel wire = 7.8 x 103 kg/m3, then what is the fundamental frequency emitted from the wire.

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

In a step up transformer ________.

NTS 2019
Physics
Alternating Current
Elimination Tool:

Work will be maximum when the angle between force and displacement is:

Flow speed of the fluid through a non-uniform pipe increases from 1 m/sec to 3 m/sec. If change in P.E. is zero, then pressure difference between two points will be: (density of the fluid = 1000 kg/m3)

UHS 2012
Physics
Fluid Dynamics
Elimination Tool:

Laser light is

The force applied on unit area to produce any change in the volume or length of a body is called:

NUMS 2017
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

Which statement is universally correct?

Particles which can be added to the nucleus of an atom without changing its chemical properties are:

NUMS 2017
Physics
Nuclear Physics
Elimination Tool:

Transformer is used in rectification to ___________ the supply voltage.

PMC Practice 5
Physics
Alternating Current
Elimination Tool:

Chromatic aberration can be removed by using

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

The sum of all forms of molecular energies in a thermodynamic system is known as:

NTS 2017
Physics
Heat and Thermodynamics
Elimination Tool:

Which of the following can’t be used as a dielectric in a capacitor

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

UHS 2011
Physics
Fluid Dynamics
Elimination Tool:

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

PMC Sample 1
Physics
Alternating Current
Elimination Tool:

The frequency of a wave as the source approaches the observer with speed v

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

NUMS Mock 3
Physics
Oscillations and Simple Harmonic Motion

If a convex lens of large aperture fails to converge the light rays incident on it to a single point, it is said to
suffer form

A disc, a hoop, and a sphere of the same mass and radius are rolled down from a frictionless, inclined plane. Which has a greater speed on reaching the ground?

NUMS Mock 3
Physics
Circular Motion and Momentum

The density of blood is:

UHS 2011
Physics
Fluid Dynamics
Elimination Tool:

The principle behind the working of cathode ray oscilloscope is:

PMC Sample 1
Physics
Electronics
Magnetism and Electromagnetic Induction
Elimination Tool:

Which of the following is a conservative field?

The ripple factor of half-wave rectifier is?

PMC Practice 14
Physics
Electronics
Elimination Tool:

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:

The half-life of Iodine Is

When a body moves in the direction of gravitational force i.e. towards the earth, the work is done by the force of gravity on the body and is ______, whereas when the body moves against the direction of gravitational force, the corresponding work done is ______.

NTS 2014
Physics
Gravitation
Elimination Tool:

Power of RCL circuit at resonance Is?

Calculate the energy of a photon of wavelength 6600 angstroms.

PMC Sample 3
Physics
Atomic Spectra
Elimination Tool:

The direction of the magnetic line of force depends upon:

NUMS Mock 2
Physics
Magnetism and Electromagnetic Induction

What is the unit of angular momentum

If Cp = 10 & Cv = 7, then the general gas constant equals:

Projectile must be launched at which angle with the horizontal to attain maximum range?

NTS 2011
Physics
Motion in Two Dimensions
Elimination Tool:

In a practical transformer mutual induction between primary and secondary coils takes place. In such transformer what can be deduced about the power.

UHS 2018
Physics
Alternating Current
Work, Power & Energy
Elimination Tool:

If the length of pendulum is increased 4 times, the new time period will be?

The wavelength associated with an electron is of the order of:

PMC 2020
Physics
Wave Motion and Sound
Elimination Tool:

Which one of the following waves needs a medium to travel?

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

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

NTS 2019
Physics
Scalars and Vectors
Elimination Tool:

Which one of the following requires no medium?

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

A pendulum oscillates on x-axis between 10 cm and 50 cm. Calculate its amplitude

When a certain metal surface is illuminated with light of frequency v. the stopping potential for photoelectric current is V0. When the same surface is illuminated by light of frequency V/2, the stopping potential is VO-/4. The threshold frequency for photoelectric emission is:

NUMS 2014
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

1 kilowatt hour =

NUMS 2020
Physics
Work, Power and Energy
Elimination Tool:

Two strings A and B of a sitar produces 6 beats per second. When the tension in string B is slightly reduced, beat frequency is reduced by 3 beats per second. If the frequency of string A is 324 Hz. then original frequency of string B was:

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

A balloon Is going upwards with a velocity 12 m/s. it releases a packet when it is at a height of 65 from ground. flow much time the packet will take to reach the ground if g=10 m/s^2?

A man throws a ball vertically upward in the compartment of an accelerated train. The ball will fall:

NUMS 2014
Physics
Motion in Two Dimensions
Elimination Tool:

A particle moving along a circular path of radius 5m and with uniform speed 5 m/s. What will be the average acceleration when the particle completes half revolution?

The phenomena in which certain metals emit electrons when exposed to high-frequency light is known as?

NTS 2014
Physics
Dawn of Modern Physics
Elimination Tool:

The beat frequency is given by:

NUMS 2014
Physics
Wave Motion and Sound
Elimination Tool:

Let X be a radioactive element having No nuclei. The time required to decay this element to one half of its initial number No is known as:

NTS 2018
Physics
Nuclear Physics
Elimination Tool:

If two or more resistors are joined to each other side by side, this combination is called:

NUMS 2018
Physics
Current Electricity
Elimination Tool:

The instrument(s) which work on the principle of Wheatstone bridge is/are:

NTS 2012
Physics
Current Electricity
Elimination Tool:

In a step-down transformer, the current in the primary coil is ______ than that in the secondary coil.

PMC 2021 Tested
Physics
Alternating Current
Elimination Tool:

Unit of emf?

The ripple factor of a half-wave rectifier is:

PMC Practice 2
Physics
Alternating Current
Elimination Tool:

The basic source of geothermal energy is

X-rays are used to investigate:

PMC Sample 3
Physics
Dawn of Modern Physics
Elimination Tool:

1 kilowatt hour =

NUMS Mock 2
Physics
Work, Power and Energy

The net charge flowing through any section of the conductor per unit time is known as?

NTS 2015 SMBBMC
Physics
Electrostatics
Elimination Tool:

A particle is projected from the ground with a kinetic energy E at an angle of 60 degree with the horizontal. Its kinetic energy at the highest point of its motion will be:

NUMS 2014
Physics
Motion in Two Dimensions
Elimination Tool:

If the velocity v being a vector quantity is multiplied to scaler quantity mass, the result will be:

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

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 point charges of +5 C and -12 C attract each other with a force of 1.48 N. charge of -5 C is added to each of these charges. Now the force will be:

NUMS 2015
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The entropy of the universe always:

NUMS Mock 3
Physics
Heat and Thermodynamics

The interference of green photon to red photon will cause:

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

What is the time period of sin(wt) ?

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: