If A = 2i + 3j – k , B = 4i + 2j – 2k . Find a vector x which is parallel to A but has the magnitude of B?

NUMS Mock 1
Physics
Scalars and Vectors

Escape velocity of Jupiter is:

A body of mass m moving with velocity v has a kinetic energy K. If its velocity is increased by 25%, what will be the work done in terms of K.E?

A football, at rest on the ground, is kicked with an initial velocity of 10 m/s at a launch angle of 30°. Calculate its total flight time, assuming that air resistance is negligible.

NTS 2014
Physics
Motion in Two Dimensions
Elimination Tool:

Young modulus for the perfectly rigid body is

The mass of earth on the basis of Newton’s Law of Gravitation is given by:

NTS 2012
Physics
Gravitation
Elimination Tool:

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

If the speed of waves is 10m/sec and its frequency is 5Hz. Find its wavelength.

NUMS Mock 3
Physics
Wave Motion and Sound

Which electrical quantity cannot be changed by a transformer?

In a centre tap full wave rectifier if Vm is the peak voltage across the secondary of transformer, the maximum voltage across reverse bias is

PMC Practice 11
Physics
Electronics
Elimination Tool:

Which of following has greatest energy

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 testa is equal to?

Spectra corresponding to the sodium vapour lamp is:

PMC Practice 5
Physics
Atomic Spectra
Elimination Tool:

F = I L B, What Is relation between I and L

The polarization of light by tourmaline crystals is due to the ______effect.

NTS 2019
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

In medical scanning, which rays are used?

PMC Practice 18
Physics
Electromagnetic Waves
Elimination Tool:

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

A small leak is developed in a large water storage tank. If the height of water above the leakage is 10 m, then find the speed of efflux through the leak:

UHS 2013
Physics
Fluid Dynamics
Elimination Tool:

A 400 gram ball is tied to the end of a cord and whirled in à horizontal circle of radius 0.6 m. If the ball makes five complete revolutions in 2 s, what is the ball’s linear speed?

NTS 2016 DUHS & JSMU
Physics
Circular Motion and Momentum
Elimination Tool:

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

Operational amplifier with an LDR is used as a:

NUMS 2019 Reconduct
Physics
Electronics
Elimination Tool:

Physics is an experimental science which depends heavily on:

NTS 2016 SMBBMC
Physics
Dawn of Modern Physics
Elimination Tool:

the value of permeability

Beta rays cannot be stopped by:

PMC Practice 11
Physics
Electromagnetic Waves
Elimination Tool:

If a gas is heated at constant pressure, which of the following description(s) will apply?

I. The volume increased is proportional to the temperature

II. The kinetic energy of the molecules decrease

III. The kinetic energy of the molecules increases

NUMS Mock 4
Physics
Heat and Thermodynamics

Law of heat exchange is used to determine:

NTS 2018
Physics
Heat and Thermodynamics
Elimination Tool:

When fluid is incompressible, it means:

NUMS 2018
Physics
Fluid Dynamics
Elimination Tool:

Which type of current passes through extrinsic semiconductors diode?

Who was awarded Nobel Prize (1921) for explanation of Photoelectric Effect?

Which of the following statement shows that no work is done?

NUMS Mock 4
Physics
Work, Power and Energy

Two spherical balls of 2.0 kg and 3.0 kg masses are moving towards each other with velocities of 6 m/s and 4 m/s respectively. What must be the velocity of the smaller ball after the collision, if the velocity of the bigger ball is 3 m/s?

NTS 2015 DUHS and JSMU
Physics
Circular Motion and Momentum
Elimination Tool:

Stokes’ Law is given as:

UHS 2013
Physics
Fluid Dynamics
Elimination Tool:

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

NTS 2015 SMBBMC
Physics
Electrostatics
Elimination Tool:

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

PMC Sample 3
Physics
Atomic Spectra
Elimination Tool:

To convert the Si crystal into a P. type semi-conductor, which group element be Doped?

NUMS 2016
Physics
Physics of Solids
Elimination Tool:

Upon signal of starting the race, the athlete starts from rest with a constant acceleration of 8 m/s2. At the same time, a cyclist traveling with a constant speed of 72 km/h passes the athlete. How far beyond the starting point will the athlete overtake the cyclist and what will be the speed of the athlete at the time when it overtakes the cyclist respectively?

NTS 2016 DUHS & JSMU
Physics
Motion in Two Dimensions
Elimination Tool:

If each particle of fluid is passing through the same point, what would be the flow?

NUMS Mock 1
Physics
Fluid Dynamics

What is the range of typical band gap in conductors

PMC Sample 3
Physics
Alternating Current
Elimination Tool:

If the velocity of the body is decreasing, the acceleration is negative. The negative acceleration is known as:

NTS 2015 SMBBMC
Physics
Motion in Two Dimensions
Elimination Tool:

Two forces equal in magnitude but opposite In direction and not acting along the same line constitute a couple. The movement of this couple will be:

NTS 2018
Physics
Forces and Motion
Elimination Tool:

When light enters from air to glass remains constant?

In microwave ovens ____ is used to heat the food

PMC Practice 33
Physics
Electromagnetic Waves
Elimination Tool:

If length of the pendulum is halved time ‘period will be?

A particle having mass m and momentum p, the kinetic energy of the particle is given by:

PMC Sample 3
Physics
Work, Power and Energy
Elimination Tool:

A 800 kg car is turning round a corner at 6 m/sec as it travels along an arc of circle of radius 12 m. The magnitude of force exerted by pavement on the tyres to hold the car in circular path is _________.

NUMS 2019 Reconduct
Physics
Circular Motion and Momentum
Elimination Tool:

A body moves on a circular path subtending an angle of 2 radians at the center of a circle of radius 3.5 meters. The linear displacement of the body is _________.

NUMS 2019 Reconduct
Physics
Circular Motion and Momentum
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

Fluorescence is produced when cathode rays strike on:

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

A battery has an e.m.f of 6.0 volts and an internal resistance of 0.4 ohm. It is connected to a 2.6 ohm resistor through a SPST (single pole, single throw switch):

When the switch is closed, the potential difference between the terminal Is, in volts is:

NTS 2010
Physics
Current Electricity
Elimination Tool:

A constant force F= 2i + 3j +4k is applied on a body. What will be the work done to move the body 5m in the z-direction?

PMC Sample 1
Physics
Scalars and Vectors
Elimination Tool:

Radian Is a:

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:

The phenomenon in which certain elements emit invisible radiations is called:

NTS 2018
Chemistry
Atomic Spectra
Elimination Tool:

Radiation can cause:

NTS 2011
Physics
Nuclear Physics
Elimination Tool:

A car travels 30 m towards east, then it takes turn and travels 40 m towards north. It takes 50 seconds in total. Its average velocity is:

PMC Sample 1
Physics
Motion in Two Dimensions
Elimination Tool:

The potential difference between the terminals of a battery in an open circuit is 2.2 V. When it is connected across a resistance of 5.0 Ω, the potential falls to 1.8 V. What is the internal resistance of the battery?

NTS 2015 DUHS and JSMU
Physics
Current Electricity
Elimination Tool:

The least distance of distinct vision for normal eye is approximately

Law of Conservation of Momentum states that total linear momentum of system remains constant if:

NUMS Mock 1
Physics
Forces and Motion

Which of the following is different for isotopes?

PMC Practice 3
Physics
Atomic Spectra
Elimination Tool:

According to kinetic theory,

NUMS 2019 Reconduct
Physics
Heat and Thermodynamics
Elimination Tool:

Instantaneous velocity is:

PMC Practice 1
Physics
Scalars and Vectors
Elimination Tool:

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

PMC Practice 8
Physics
Alternating Current
Elimination Tool:

In a ripple tank, 40 waves pass through a certain point in 1 second. If the wavelength of the wave is 5 cm, then speed of the wave is:

PMC 2020
Physics
Wave Motion and Sound
Elimination Tool:

A body of mass m = 3.513 kg is moving along the x axis with a speed of 5.00 ms^-1 of  the magnitude of Its momentum Is recorded as

Two spheres of the same size, one of mass 5 kg and the other of mass 50 g are dropped simultaneously from a tower. When they are about to touch the ground, they have the same:

NUMS Mock 4
Physics
Gravitation

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:

The food we eat in one day has about the same energy as:

NUMS 2020
Physics
Work, Power and Energy
Elimination Tool:

A convex lens gives a virtual image only when the objects leis

A particle carrying charge of 2e falls through a potential difference of 3.0 V. Calculate energy acquired by it.

NTS 2015 DUHS and JSMU
Physics
Electrostatics
Elimination Tool:

The spin of a photon is:

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

Rays produced by LED are:

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

“At constant pressure, the volume of gas is directly proportional to Absolute Temperature” this is known as?

NTS 2015 SMBBMC
Physics
Heat and Thermodynamics
Elimination Tool:

Identify the postulate(s) which help to formulate a mathematical model of gases.

I. A finite volume of gas consists of very large number of molecules

II. The size of the molecules is much smaller than the separation between molecules

III. Molecules do not exert force on each other except during a collision.

NUMS Mock 2
Physics
Heat and Thermodynamics

An electron is moving along the axis of a solenoid carrying a current. Which of the following is a correct statement about the electromagnetic force acting on the electron?

NUMS 2015
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

How can we define linear magnification produced by a lens?

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

A body has mass 1 kg on earth. Its mass on moon will be

What is the unit of angular momentum

A simple pendulum is suspended from the ceiling of a lift has a time period T when the lift is at rest. when it fall freely

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

Newton’s first law Is applicable on:

I) Body In motion II) Body In rest

In half wave rectification, the output DC voltage is obtained across the load for?

PMC Practice 10
Physics
Electronics
Elimination Tool:

Hooke’s law states that under normal conditions:

NUMS 2019 Cancelled
Physics
Physics of Solids
Elimination Tool:

The third law of motion given by Newton deals with an action- reaction pair of forces.

Consider two bodies: if the action is due to one body, the reaction will be due to:

NTS 2016 SMBBMC
Physics
Forces and Motion
Elimination Tool:

S.I. Unit of universal gravitational constant G is:

NUMS 2016
Physics
Gravitation
Elimination Tool:

A body Is dropped from a height 175m, how much time will it take to reach the ground?

A bullet fired from gun can pierce a target due to

PMC Sample 1
Physics
Work, Power and Energy
Elimination Tool:

A power line 8m high carries a current 100A. What is the magnetic field of wire at ground?

NUMS Mock 1
Physics
Magnetism and Electromagnetic Induction