In photo-emission from a metal, if light of λ is replaced by light of wavelength λ / 4 , the maximum kinetic energy of the photoelectrons.

NUMS Mock 1
Physics
Dawn of Modern Physics

If the body is rotating with uniform angular velocity, then its torque is:

NUMS 2016
Physics
Circular Motion and Momentum
Elimination Tool:

A vector in space has _____ dimension:

NUMS 2017
Physics
Scalars and Vectors
Elimination Tool:

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

NUMS 2016
Physics
Current Electricity
Elimination Tool:

Zeros are always considered significant when they are

Center of gravity of a cup Iles

If an electron jumps from 68′ orbit to 7 orbit, the increase in radius will be:

Which unit expresses work per unit charge?

NTS 2017
Physics
Work, Power and Energy
Elimination Tool:

Presence of Photon was confirmed by

terminal velocity of a water droplet is dependent on:

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:

A real image formed by convex lenses is always:

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

The sum of Kinetic energy and the Potential energy is always constant to provide _____ .

NTS 2019
Physics
Work, Power and Energy
Elimination Tool:

Human body emits which of the following radiation?

Entropy is the measure of of a system

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

NTS 2016 SMBBMC
Physics
Heat and Thermodynamics
Elimination Tool:

What will be the change in potential energy if an electron moves 4.5m in the direction of an electric field of strength 325 N/C?

Artificial gravity can be supplied by which of the following ways so that normal force of gravity can be generated for the astronaut:

NTS 2011
Physics
Gravitation
Elimination Tool:

A bicycle wheel of radius 0.70 m is turning at an angular speed of 6.3 rad/s as it rolls on a horizontal surface without slipping. What is the linear speed of the wheel?

When the output power equals to one-half of the input power, efficiency of the transformer becomes:

NUMS Mock 4
Physics
Work, Power and Energy

At resonance, the RLC circuit behaves like:

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:

Which of the following remains unchanged in a transformer.

PMC Sample 3
Physics
Alternating Current
Elimination Tool:

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

What will the de Broglie wavelength of a 150 g mass moving with a velocity of 50 m/s be?

PMC 2021 Tested
Physics
Dawn of Modern Physics
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:

A wave, which transfers _____ by moving away from the source of disturbance is called _____ wave.

NUMS 2019 Reconduct
Physics
Wave Motion and Sound
Elimination Tool:

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

How many quarks neutron and proton is made up of?

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

NUMS Mock 1
Physics
Oscillations and Simple Harmonic Motion

Which of the following has highest ionizing power and least penetrating power?

The distance between two consecutive nodes is:

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

Rate of change in displacement is known as:

PMC Sample 1
Physics
Forces and Motion
Elimination Tool:

If during circular motion, tangential velocity of a body becomes double, then centripetal force becomes:

PMC 2020
Physics
Circular Motion and Momentum
Elimination Tool:

Length of the telescope is:

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

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

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

The wave in which crest and trough superimpose each other is ?

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

Energy difference in balmer series for longest wavelength is

PMC Sample 3
Physics
Atomic Spectra
Elimination Tool:

If an object sinks in the water, then

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:

The unit of impulse is same as of

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?

Two long, parallel conductors which are free to move are arranged 1.0 cm apart. A steady current of 20 A flows in each of the conductors in the same direction. The conductors:

NUMS Mock 3
Physics
Magnetism and Electromagnetic Induction

If length of the wire becomes two times to the original value and area becomes one half to its original value, then resistance of the wire becomes:

NUMS 2020
Physics
Current Electricity
Elimination Tool:

Energy stored in capacitor is represented by.

If three resistances RI, RI and R3 are connected In Parallel to the circuit such that RI> RI > RI. Which of the following will be true for the Equivalent Resistance R’?

When a body is falling under the action of gravity the direction of acceleration is:

Js is the unit of:

A nucleus consists of 11 protons and 12 neutrons. The conventional symbol of nucleus is:

NTS 2011
Physics
Nuclear Physics
Elimination Tool:

While using radiation therapy, cancerous thyroid is treated with ____ radioisotope:

PMC 2020
Physics
Nuclear Physics
Elimination Tool:

All of the following is/are scalar quantities except:

NTS 2011
Physics
Scalars and Vectors
Elimination Tool:

Conversion of heat energy completely into work violates:

NUMS 2014
Physics
Heat and Thermodynamics
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:

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:

Michelson measured the length of a standard meter in terms of the wavelength of:

PMC Practice 2
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

Two parallel straight conductors, in which current is flowing in the same direction, attract each other. The cause of it is:

PMC 2020
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The rate at which work is being done is called:

UHS 2018
Physics
Work, Power and Energy
Elimination Tool:

How much angle does the vector 2i+3j makes with y axis.

If a stationary bar magnet is placed near a coil so that maximum lines of force passes through the coil, the galvanometer shows:

PMC 2020
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

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

NTS 2019
Physics
Electrostatics
Elimination Tool:

The potential energy at the mean position of a pendulum is:

PMC 2021 Tested
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

When the source moves towards an observer the frequency of waves as perceived by observer:

A special class of waves that does not need a material medium for their propagation are called

NUMS Mock 4
Physics
Physics of Solids
Wave Motion and Sound

Moment of inertia in angular motion plays the same role as

How fast an H+ ion should move in magnetic field 2.5×10-3 T such that magnetic force equal its weight?

NUMS 2016
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The spin of a photon is:

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

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

A copper wire has resistances 10 ohms and 20 ohms at temperature 0 C and 10 C respectively. What is the temperature coefficient of the copper wire?

NUMS 2016
Physics
Heat and Thermodynamics
Elimination Tool:

Half wave voltage multipliers can provide what degree of voltage multiplication?

PMC Practice 4
Physics
Alternating Current
Elimination Tool:

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

PMC 2020
Physics
Current Electricity
Elimination Tool:

The magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called:

NUMS Mock 2
Physics
Magnetism and Electromagnetic Induction

Which of the following is NOT a unit of energy?

PMC 2021 Tested
Physics
Work, Power & Energy
Measurements
Elimination Tool:

Which of the following Is true for a wave entering a denser medium?

A car 500 kg is travelling at a constant speed of 9 m/s round a curve of 100m. What is the centripetal force?

NTS 2019
Physics
Circular Motion and Momentum
Elimination Tool:

The earth rotates on its axis once a day. Suppose, by some process the earth contracts so that it’s radius is only half as large as at present, then how long the earth will take to complete it’s rotation?

PMC 2020
Physics
Circular Motion and Momentum
Elimination Tool:

Ratio of Nano to Atto Is:

A lens which converges a beam of parallel rays to a point is called

In hydrogen spectrum, Lyman and Balmer series belong to which region?

Planck’s constant is analogous to:

PMC Practice 6
Physics
Dawn of Modern Physics
Elimination Tool:

If half-life of an element Is 4 minutes, then 3/4′ of It Is decayed in:

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:

Which of the following can cause least Ionization but has high Penetrating Power?

A car of mass 1200 kg initially at rest has been accelerated to a speed of 8 m/s in 16 meters. Average acceleration of the car is ______ m/s2? And force is _____ N?

NTS 2019
Physics
Forces and Motion
Elimination Tool:

AC is converted to D.C by:

A tuning fork A produces 4 beats with another tuning fork B. if the frequency of tuning fork B is 320 Hz, then the frequency of tuning fork A is:

PMC Practice 21
Physics
Electromagnetic Waves
Elimination Tool:

Induced emf depends upon:

The values of electric intensity will ____ due to the presence of dielectric medium:

PMC 2020
Physics
Electrostatics
Elimination Tool:

In rotational motion, angular momentum plays a role which is analogous to that played by _____ in linear motion.

NUMS Mock 3
Physics
Circular Motion and Momentum