R1 and R2 are two-position vectors making angles θ1 and θ2 with positive X-axis respectively. Their vector product is:

[R1 = 4 cm, R2 = 3 cm , e1 = 30 degrees , e2 = 90 ]

NTS 2011
Physics
Scalars and Vectors
Elimination Tool:

Maximum acceleration with zero velocity is possible only for:

NUMS 2018
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

For the first time in 1914, Henry Moseley used X-rays for the determination of:

NTS 2018
Chemistry
Atomic Spectra
Elimination Tool:

) Which can damage eye?

Mass of a person is 50 kg. The apparent weight of the person in elevator is double of his real weight. Find the acceleration of the elevator. Consider g = 10 m/s2

What happens to the pressure ‘p’ of an ideal gas, if the temperature is increased by a factor of 2 and the volume is increased by a factor of 8?

NUMS Mock 1
Physics
Heat and Thermodynamics

When some charge is given to a soap bubble it

Applications of laser is/are:

NTS 2011
Physics
Electromagnetic Waves
Elimination Tool:

in an organ pipe if one side is closed, then it is proved that harmonics released will be

The temperature coefficient of normal-conductor is negative because:

NUMS 2020
Physics
Heat and Thermodynamics
Elimination Tool:

Value of  ∊ _s is:

The direction of current through the load resistance of a full-wave rectification circuit:

UHS 2019
Physics
Alternating Current
Elimination Tool:

The rapid escape of air from a burst tyre is an example of:

NUMS 2020
Physics
Heat and Thermodynamics
Elimination Tool:

An object placed in front of a concave mirror at a distance of X cm from the pole gives a 3 times magnified real image. If it is moved a distance of X+5cm, the magnification of the image becomes 2. The focal length of the mirror is:

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

The entropy of the universe always:

NUMS Mock 3
Physics
Heat and Thermodynamics

P = Irms Vrms Is applicable for

In single slit diffraction, when wavelength lameda increases:

PMC Practice 20
Physics
Electromagnetic Waves
Elimination Tool:

In a pure resistive circuit current and voltage are

Volume of sphere having radius 17 cm Is:

Current that fluctuates periodically with time is ——

PMC Practice 4
Physics
Alternating Current
Elimination Tool:

A train is approaching a station at 90 km/h sounding a whistle of frequency 1000 Hz. What will be the apparent frequency heard by the listener sitting on the platform if the train moves away from the station at the same speed? (speed of sound= 340 m/s)

NTS 2015 DUHS and JSMU
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

Kelvin, is the unit of thermodynamic temperature, which is ________ of the thermodynamic temperature of the triple point of water.

NTS 2015 DUHS and JSMU
Physics
Heat and Thermodynamics
Elimination Tool:

A bullet penetrating 30cm into its target loses its velocity by 50%. What additional distance will it penetrate into the target before it comes to rest?

NUMS 2019 Cancelled
Physics
Motion in Two Dimensions
Elimination Tool:

A ballistic missile is

Electric Generators work on the principle of:

Which of the following Is not true about radioactivity?

A sound wave travels from a region of hot air into a region of cold air. How does frequency and wavelength of sound change?

PMC Practice 21
Physics
Electromagnetic Waves
Elimination Tool:

In E = aT4  E stands for??

In an astronomical telescope, the lens called eyepiece forms an image of a distant object that is:

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

A wire is stretched by a force ‘F’ which causes an extension ∆l, the energy stored in the wire is:

UHS 2012
Physics
Physics of Solids
Elimination Tool:

Spectral lines is like a __________ of absorbed or emission energy in a spectrum.

PMC Sample 3
Physics
Atomic Spectra
Elimination Tool:

Equations of kinetics are valid only when the acceleration is:

NTS 2018
Physics
Forces and Motion
Elimination Tool:

In Young’s Experiment, the central spot In Interference pattern is

In simple harmonic motion, acceleration will be maximum, when object is at:

NUMS Mock 3
Physics
Oscillations and Simple Harmonic Motion

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:

Torsion balance is used to measure:

The force which will accelerate a 25 kg mass at 98 cm/s2 on a smooth horizontal plane is:

NTS 2016 SMBBMC
Physics
Forces and Motion
Elimination Tool:

According to the hook’s law, strain is directly proportional to stress

A 3 kg stone falls from a 20m high platform. Find its falling speed at 10 m height.

NUMS 2020
Physics
Forces and Motion
Elimination Tool:

Which one of the following Is correct

In the Compton Scattering experiment the X-ray wavelength change Δλ is ___________. Here h is Planck constant, m rest mass of electron and θ is angle after scattering.

NTS 2019
Physics
Dawn of Modern Physics
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:

Vector components In space are

What is the speed of 2.0 kg metallic bob at the mean position of a simple pendulum, when released from its extreme position 0.5m high? (g = 10 ms-2)

PMC 2020
Physics
Work, Power and Energy
Elimination Tool:

What will be the position of the object, when a convex lens of focal length 20 cm, is used to form an erect image which is twice as large as the object?

NTS 2016 DUHS & JSMU
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

When an observer moves with velocity of light, relative to a timing device at rest, he would notice:

NUMS 2015
Physics
Dawn of Modern Physics
Elimination Tool:

A jeep travelling at a constant speed of 108 km/hr rounds a curve of radius 100 m. Find its acceleration.

NTS 2015 SMBBMC
Physics
Circular Motion and Momentum
Elimination Tool:

In mass-spring system, which of the following does not depend on the initial displacement of the spring?

PMC Practice 4
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

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

NTS 2019
Physics
Scalars and Vectors
Elimination Tool:

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

If the radii of two droplets are in the ratio 2:3, what will be the ratio of their Terminal velocities?

Which of the following is incorrect?

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

NUMS 2020
Physics
Work, Power and Energy
Elimination Tool:

A box of mass m = 6 kg slides with speed v = 4 m/s across a frictionless floor. It suddenly explodes into two pieces. One-piece, with mass m1= 2 kg moves in the same direction with speed v1= 8 m/s . Find the velocity of the second piece.

NTS 2013
Physics
Motion in Two Dimensions
Elimination Tool:

The width of depletion region Increases due to:

Is it possible to separate north pole only from bar magnet?

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

If the temperature of diode increases the leakage current will

PMC Sample 2
Physics
Electronics
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 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:

What are dimensions of Magnetic Flux

Unit of induced emf is

Product of Force and Time Is

Which one has least value?

Let L be the length and d be the diameter of the cross section of a wire. Wires of the same material with different L and d are subjected to the same tension along the length of the wire. In which of the following cases the extension of wire will be the maximum?

NUMS 2014
Physics
Physics of Solids
Elimination Tool:

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

The frequency of applied AC is 2 kHz. Its time period will be:

PMC Practice 3
Physics
Alternating Current
Elimination Tool:

Which of the following is the pair of isobars?

NUMS Mock 1
Physics
Nuclear Physics

Electrons are emitted in the production of X rays by:

NUMS 2016
Physics
Atomic Spectra
Elimination Tool:

A bar magnet has a magnetic moment 200 Am2. The magnet is suspended in a magnetic field of 0.30 NA-1m-1. The torque required to rotate the magnet from its equilibrium position at an angle of 30˚ will be:

NUMS 2014
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

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

PMC Practice 10
Physics
Electronics
Elimination Tool:

A body with constant speed can still be accelerating. This statement Is:

A system absorbs 1000 Joules of heat and delivers 600 Joules of work, while losing 100 Joules of heat by conduction to the atmosphere, the change in the internal energy of the system will be:

NTS 2012
Physics
Heat and Thermodynamics
Elimination Tool:

Speed and Pressure relation of a fluid is given by:

A coil is placed near a magnet. Emf will be induced in it when

The product of frequency and time period is equal to:

NUMS 2020
Physics
Wave Motion and Sound
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:

If A = 2.79 and B = 8.1 , then A+B =?

The internal energy of a system during an isothermal process:

PMC 2020
Physics
Heat and Thermodynamics
Elimination Tool:

If an Electromagnetic wave is plane polarized, then the direction of electric field and magnetic field will be

An alternation voltage V (in volts) is represented by the equation:
V = 300 sin (100πt)
What is the value of “f” for this voltage?

UHS 2019
Physics
Alternating Current
Elimination Tool:

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

NUMS 2019 Reconduct
Physics
Forces and Motion
Elimination Tool:

A cathode ray oscilloscope is displaying an AC signal. If one wave is completed in 2 cm along X- axis and time-base setting is 10 ms/cm, then frequency of AC signal will be:

NUMS 2019 Cancelled
Physics
Wave Motion and Sound
Elimination Tool:

A car at rest starts moving with linear uniformly increasing velocity. After 20 seconds, it attains the maximum velocity of 80 m/s. What is the distance covered during this time interval?

NUMS 2019 Cancelled
Physics
Forces and Motion
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:

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:

Beta rays cannot be stopped by:

PMC Practice 11
Physics
Electromagnetic Waves
Elimination Tool:

The SI unit for intensity of sound is:

NTS 2015 SMBBMC
Physics
Wave Motion and Sound
Elimination Tool:

When the speed of body is doubled is momentum becomes

Pa m² is the unit of

Energy required to charge a capacitor of 5 micro farad by connecting D.0 source of 20 KV is a) 10kJ b) 5k1 c) 21:.1 d) 11(1

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: