Mechanical energy of an object is the sum of its Potential Energy and ?

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

Identify the example/s of Static Equilibrium:

I. A book lying on a horizontal table
II. A building
III. A bridge

NTS 2012
Physics
Forces and Motion
Elimination Tool:

A ball is thrown vertically upward with the velocity of 98 m/sec, how high does the ball rise?

NTS 2012
Physics
Motion in Two Dimensions
Elimination Tool:

An object having spherical shape of radius ‘r’ experiences a retarding force F from a fluid of coefficient of viscosity ‘η’ when moving through the fluid with speed ‘v’. What is the ratio of retarding force to speed?

UHS 2011
Physics
Fluid Dynamics
Elimination Tool:

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:

Capacitance increases by

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

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

A simple pendulum with spring constant 500 n/m oscillates between two points x1 = 10cm and x2 = 15 cm. What is total mechanical energy at 10cm?

A convex lens of focal length ‘f1’and a concave lens of focal length ‘f2’ are placed in contact. The focal
length of the combination is

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

NUMS Mock 3
Physics
Wave Motion and Sound

The maximum Compton shift Is at

A current carrying conductor is lying perpendicular to magnetic field and experiencing some force. If the conductor rotates by 60 degrees counter clock wise, the force on it will

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

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 5 kg and that of body ‘Y’ is 4.8 kg. Find the acceleration?(g = 9.8 m/s^2)

NTS 2015 DUHS and JSMU
Physics
Forces and Motion
Elimination Tool:

Which of the following gives the correct expression of Decay Constant?

A force F = 0.12 N is applied on a spring and the spring elongates by 3 cm. The specific constant of the spring is?

NUMS Mock 2
Physics
Oscillations and Simple Harmonic Motion

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

NTS 2016 SMBBMC
Physics
Dawn of Modern Physics
Elimination Tool:

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:

The chemical properties of elements depend on ________.

NUMS 2019 Reconduct
Physics
Nuclear Physics
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:

The rectifier is a device which converts?

PMC Practice 3
Physics
Alternating Current
Elimination Tool:

Which of the following is a conservative field?

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

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

NTS 2016 DUHS & JSMU
Physics
Nuclear Physics
Elimination Tool:

Beta rays cannot be stopped by:

PMC Practice 11
Physics
Electromagnetic Waves
Elimination Tool:

The number of protons in the nucleus is called _____ number.

PMC Sample 3
Physics
Atomic Spectra
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 force F = 0.12 N is applied on a spring and the spring elongates by 3 cm. The specific constant of the spring is?

NUMS 2017
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

For adiabatic process, the first law of thermodynamics is:

NUMS Mock 3
Physics
Heat and Thermodynamics

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

NUMS 2016
Physics
Wave Motion and Sound
Elimination Tool:

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:

By changing the current through the same coil, an emf is induced in it, the process is known as:

NTS 2015 SMBBMC
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

When a fluid is incompressible, it means:

FMDC 2018
Physics
Physics of Solids
Elimination Tool:

If the diameter of the earth becomes two times its present value and its mass remains unchanged, then how would the weight of an object on the surface of the earth be affected?

NTS 2014
Physics
Gravitation
Elimination Tool:

The young’s modulus of a given rod of uniform length ? is given by the relation:

ETEA 2018
Physics
Physics of Solids
Elimination Tool:

The chemical properties of elements depend on ________.

NUMS Mock 2
Physics
Nuclear Physics

A Lead ball and a feather are dropped in vacuum both at the same time. Which of the following will be true:

Instantaneous velocity is defined as

PMC Sample 3
Physics
Motion in Two Dimensions
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 body is rotating with uniform angular velocity, then its torque is:

NUMS 2016
Physics
Circular Motion and Momentum
Elimination Tool:

When semi-conductors dopped In
then they are p-type

If temperature on Kelvin scale Is reduced to half, what would be the effect on the energy of radiations?

Ideal fluid is:

NUMS 2018
Physics
Fluid Dynamics
Elimination Tool:

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

PMC Sample 2
Physics
Circular Motion and Momentum
Elimination Tool:

If the temperature is increased from 200K to 800K, then what would be the change in pressure at constant volume?

NUMS 2016
Physics
Heat and Thermodynamics
Elimination Tool:

The slope of distance – time graph will always be:

PMC 2020
Physics
Motion in Two Dimensions
Elimination Tool:

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?

NUMS Mock 1
Physics
Magnetism and Electromagnetic Induction

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:

A traveling wave, in which the particles of the disturbed medium move perpendicular to the direction of propagation of the wave is called:

NUMS 2019 Reconduct
Physics
Wave Motion and Sound
Elimination Tool:

1 light year distance is the:

PMC Practice 5
Physics
Measurements
Elimination Tool:

The change in resistance of metallic conductor at temperature below 0 degrees is:

PMC 2020
Physics
Current Electricity
Elimination Tool:

Which of the ,following act as a heat pump?

In an extrinsic semi-conductor charge carriers are

A body of mass 5 kg, initially at rest, is moved by a horizontal force of 2N on a smooth horizontal surface. Find the work done by the force in 10 sec:

NTS 2010
Physics
Forces and Motion
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?

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 Mock 4
Physics
Magnetism and Electromagnetic Induction

In a half wave rectifier, the diode conducts during:

NUMS 2019 Reconduct
Physics
Alternating Current
Elimination Tool:

A student is performing a lab experiment on simple harmonic motion. He has two different springs (with force constants k1 and k2) and two different blocks (of masses m1 and m2). If k1 =2k2, and m1 = 2m2 , which of the following combinations would give the student the spring-block simple harmonic oscillator with the shortest period?

NTS 2014
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

Which of the following are component of half wave rectifier?

PMC Practice 1
Physics
Alternating Current
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:

If the volume of a gas is fixed then on increasing its temperature, its pressure______

NTS 2016 SMBBMC
Physics
Heat and Thermodynamics
Elimination Tool:

The diameter of a lens is called

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

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

If length of solenoid gets doubled while keeping N (number of turns) constant, the resultant magnetic field will be?

What is the unit of angular momentum

A circuit in which there is a current of 10 amperes is changed so that the current falls to zero in 0.5 seconds. If an average e.m.f. of 400 volts is induced, what is the self-inductance of the circuit?

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

When a transformer is connected to 120-volt ac, it supplies 3000 V to a device. The current through the secondary winding then is o.06 A and the current through the primary is 2 A. The number of turns in the primary winding is 400. The number of turns in the secondary winding is:

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

The fractional change in resistance per kelvin is known as:

NUMS 2016
Physics
Current Electricity
Elimination Tool:

Under what condition an object will have zero displacement but non zero distance?

PMC 2020
Physics
Circular Motion and Momentum
Elimination Tool:

In an inelastic collision, Momentum is _____ and Kinetic Energy is ______ respectively.

NUMS 2019 Reconduct
Physics
Forces and Motion
Elimination Tool:

Which of the following statements is not consistent with Bohr’s set of postulates regarding the hydrogen atom model with regard to the emission and absorption of light?

NTS 2013
Physics
Atomic Spectra
Elimination Tool:

A vector having magnitude equal to one is called

Formula for Horizontal Range of  projectile is

Negative strain indicates that

The unit of impulse is same as of

Two equal, opposite charges are fixed at a distance d. Positive charge is at the right and negative at the left position. As shown below:

X – Y + Z

At which position, the net electric field is directed to the left?

PMC Sample 2
Physics
Electrostatics
Elimination Tool:

A rotating wheel of radius 0.5 m has an angular velocity of 5 rad/s at some instant and 10 rad / s after 5 s. Find the angular acceleration of a point on its rim.

NTS 2013
Physics
Circular Motion and Momentum
Elimination Tool:

A shot leaves a gun at the rate of 160m/s. Calculate the greatest distance to which it could be projected and the height to which it would rise: (g=10 m/s2)

NTS 2010
Physics
Motion in Two Dimensions
Elimination Tool:

Which of the following work (s) on the principle of wheatstone Bridge?

NTS 2011
Physics
Current Electricity
Elimination Tool:

Vector components In space are

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 equation ΔU = ΔQ refers to:

NTS 2012
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:

Wave nature of light is proved by:

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

Centrifugal force of a body depends upon?

The light exhibits the phenomena of constructive interference under the situation when it is ______ and ______.

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

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

NTS 2014
Physics
Electrostatics
Elimination Tool:

A mass of 20 kg is lifted from the floor to a height of 2m in 4.9 sec. Calculate the power in Watts.

NUMS Mock 1
Physics
Work, Power and Energy

Choose the correct arrangement of the various regions of the electromagnetic spectrum in terms of wave length.

ETEA 2017
Physics
Electromagnetic Waves
Elimination Tool:

What will be the speed a electron having an energy of 18.2 x10^14 Joule?

Laws of motion describes?