1 Inch = —- cm

In microwave ovens ____ is used to heat the food

PMC Practice 33
Physics
Electromagnetic Waves
Elimination Tool:

A bomber drops a bomb when it is vertically above the target. It misses the target because of the:

NUMS 2014
Physics
Gravitation
Elimination Tool:

A full wave rectifier is operating from 50 Hz mains. Fundamental frequency of ripple will be:

PMC Practice 1
Physics
Alternating Current
Elimination Tool:

The quantity of heat required to raise the temperature of one mole of a substance through 1 K is called:

NTS 2010
Physics
Heat and Thermodynamics
Elimination Tool:

Center of gravity of a cup Iles

X rays are affected by:

NUMS 2018
Physics
Atomic Spectra
Elimination Tool:

Dimension of power?

For adiabatic process, the first law of thermodynamics is:

NUMS Mock 3
Physics
Heat and Thermodynamics

What would be Compton Wave shift if X-rays are scattered at an angle of 90 degree?

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:

The electron current is chiefly due to:

NUMS 2016
Physics
Wave Motion and Sound
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 2019 Cancelled
Physics
Forces and Motion
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:

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:

______ 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:

A sample of an ideal gas may : expand adiabatically or expand isothermally. The net flow of heat into the gas from the exterior is:

NTS 2017
Physics
Heat and Thermodynamics
Elimination Tool:

The process of converting alternating current to direct current is called?

PMC Practice 14
Physics
Electronics
Elimination Tool:

During radioactive decay of a nucleus zXA, β emission takes place along with the daughter nucleus. Because of this beta particle emission, the mass number (A) of the parent nucleus:

NTS 2018
Physics
Nuclear Physics
Elimination Tool:

Which of the following color has maximum energy?

Conversion of heat energy completely into work violates:

NUMS 2014
Physics
Heat and Thermodynamics
Elimination Tool:

e/m for an electron is ______, when the charge of an electron is 1.6 x 10-19C and mass of electron is 9.1 x 10-31kg.

NUMS 2019 Reconduct
Physics
Electrostatics
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?

An object is falling down with a speed of 20 m/s. After 3 seconds

its velocity will be ______ m/s (g = 10 m/s2).

NTS 2019
Physics
Motion in Two Dimensions
Elimination Tool:

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

Two positive point charges are placed 2m apart. The electric potential at midpoint due to these two charges will be _____:

NUMS 2020
Physics
Electrostatics
Elimination Tool:

The half-life of a radioactive element depends upon:

NUMS Mock 4
Physics
Nuclear Physics

A charge is moving with velocity v, it enters a uniform electric field E. The direction of v and E are not parallel. What is the path of the charge particle inside the electric field?

PMC Sample 2
Physics
Electrostatics
Elimination Tool:

When some charge is given to a soap bubble it

The energy equivalent to 0.9 mg is? a) 9 x 1091 b) 8.1 x 10″J •

Torsion balance is used to measure:

Mutual inductance has a practical role in performance of:

PMC Practice 4
Physics
Alternating Current
Elimination Tool:

If y-component of a force acting In y direction is 6N the x-component will be

A generator of e.m.f. 80 V has an internal resistance of 0.04 Ω. If its terminal voltage is 75 V, determine the current.

NTS 2013
Physics
Current Electricity
Elimination Tool:

Which one of the following force is non-conservative:

PMC 2020
Physics
Forces and Motion
Elimination Tool:

Which device is used to measure the potential difference between two points of a conductor in the laboratory?

NUMS 2020
Physics
Current Electricity
Elimination Tool:

In a npn transistor, the current IEthat flows in the emitter circuit is:

NTS 2016 DUHS & JSMU
Physics
Electronics
Elimination Tool:

If the temperature of diode increases the leakage current will

PMC Sample 2
Physics
Electronics
Elimination Tool:

Water is flowing in a streamline motion through a horizontal tube. The pressure at a point in the tube is P where the velocity of now is v. At another point, where the pressure is P/2, the velocity of flow is: (density of water=ρ)

NUMS 2014
Physics
Fluid Dynamics
Elimination Tool:

A car is travelling in a straight line along a highway at a constant speed of 80miles per hour for 10 seconds. Find its acceleration.

NTS 2015 SMBBMC
Physics
Forces and Motion
Elimination Tool:

Find the work done in moving an object along a straight line from (3,2,−1) to (2,−1,4) in a force field given by F=4i^−3j^​+2k^.

NTS 2013
Physics
Scalars and Vectors
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:

In a bridge type full-wave rectifier, if Vm is the peak voltage across the secondary coil of the transformer, the maximum voltage coming across each reverse biased diode is:

PMC Practice 5
Physics
Alternating Current
Elimination Tool:

If a closed surface contains two equal and opposite The net electric flux from the surface will be

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

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

An electron describes a circular orbit of radius 2 cm in a uniform magnetic field. If the speed of the electron is doubled then the radius of the orbit will be:

NUMS 2015
Physics
Circular Motion and Momentum
Elimination Tool:

What will be the Impedance for V = 10 sin(wt) and I = 20 sln(wt)

Third law of Newton is also called:

NUMS Mock 2
Physics
Forces and Motion

Interference is shown by Light

E/m of an electron is given by the relationship.

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

The distance between two consecutive antinodes is equal to:

NUMS 2018
Physics
Wave Motion and Sound
Elimination Tool:

If a car is moving with constant non-zero velocity, then its displacement time graph will be:

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

The power dissipated in a resistor is 12.8 watts when 4A current Is passed. Hw much power will be dissipated If 6A current Is passed through the same resistor?

The dimensions of angular velocity (ω) is:

NUMS 2019 Cancelled
Physics
Measurements
Elimination Tool:

Consider an object placed on a frictionless inclined plane at a height of 5m , if it is released, what will be its velocity at the bottom of the inclined plane?

NUMS Mock 3
Physics
Forces and Motion

If the velocity of particle is varying linearly with time then shape of d-t curve would be

PMC Sample 2
Physics
Motion in Two Dimensions
Elimination Tool:

A pipe open at both ends has a length of 5m. The second harmonic frequency is _____. Velocity of sound in air = 340 m/s.

NUMS Mock 4
Physics
Wave Motion and Sound

1 pascal = atm

Moment of inertia of a sphere is:

Which series is emitted when electron Jumps from a higher orbit to fifth orbit?

A lens, which is thicker at the center and thicker at the edges, is called.

An object of mass 2kg has a velocity of 6m/s. After 8 seconds, its velocity increases to 10 m/s.
Calculate the power of the object

What is the work done by a body moving with 1 m/s velocity in circular orbit of radius 10m?

The anti-particle of quark is _________.

PMC Practice 5
Physics
Atomic Spectra
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:

An object is moving along a circular path of radius 4m. What will be its angular displacement if it moves 14 m on this circular path?

NUMS Mock 2
Physics
Circular Motion and Momentum

The diameter of a lens is called

Transformer works on the principle of:

NTS 2016 SMBBMC
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

Magnetic effect of electric current was first discovered by

What is the angle made by the vector -i-5j with x-axis?

Photocell is similar to:

PMC Sample 2
Physics
Dawn of Modern Physics
Elimination Tool:

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’?

What Is absolute uncertainty In length of 10m measured by scale of precision of 0.1m?

Current that fluctuates periodically with time is ——

PMC Practice 4
Physics
Alternating Current
Elimination Tool:

What is the quark composition of a Proton?

NUMS Mock 2
Physics
Nuclear Physics

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

NTS 2019
Physics
Work, Power and Energy
Elimination Tool:

Speed and Pressure relation of a fluid is given by:

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:

If current passing through a solenoid is increased, which of the following must increase:

The ratio of angular speed of moon around the Earth to its angular speed about its own axis is:

NUMS 2015
Physics
Circular Motion and Momentum
Elimination Tool:

A progressive wave moving along the X axis is represented by y = [(2 π / λ – x)]. The wavelength at which the maximum particle velocity is 3 times the wave velocity is:

NUMS 2014
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

In Young’s Double slit experiment, if the spacing between the slit is doubled and the linear distance from the screen is reduced to one half then the spacing between the two adjacent bright fringes will be ____ of actual value.

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

In SHM the kinetic energy of the body is maximum when:

NUMS Mock 1
Physics
Oscillations and Simple Harmonic Motion

Which of the following phenomenon proves that light waves are transverse waves?

PMC Practice 4
Physics
Electromagnetic Waves
Elimination Tool:

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

An emf of 120 volts of negligible internal resistance is connected across a resistance of 1000 ohm. The current flowing through the circuit will be:

NUMS Mock 2
Physics
Current Electricity

Magnifying power of simple microscope

What will be the energy in Joules, when an electron acquires a speed of 10 m/s?

NTS 2016 DUHS & JSMU
Physics
Dawn of Modern Physics
Elimination Tool:

X rays are similar in nature to:

NUMS 2018
Physics
Atomic Spectra
Elimination Tool:

If length of simple pendulum is increased four times what will be effect on its frequency?

Anti matter theory was proposed by: a) Einstein b) Bohr