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 battery has an e.m.f. of 4 V and internal resistance ‘r’. When this battery is connected to an internal resistance of 2 ohms, a current of 1 amp flows in the circuit. How much current will flow if the terminals of the battery are connected directly:-

NTS 2010
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

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:

If an object sinks in the water, then

The formula for the Paschen series for the Hydrogen spectrum is _______.

NTS 2019
Physics
Atomic Spectra
Elimination Tool:

What is the range of typical band gap in conductors

PMC Sample 3
Physics
Alternating Current
Elimination Tool:

A steel wire hangs vertically from a fixed point, supporting a weight of 80 N at its lower end. The diameter of the wire is 0.50 mm and its length from the fixed point to the weight is 1.5 m. If density of steel wire = 7.8 x 103 kg/m3, then what is the fundamental frequency emitted from the wire.

PMC Sample 2
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

Unit of Magnetic Flux is

In case of half wave rectification the resistance of diode during negative half of A.C is:

UHS 2018
Physics
Alternating Current
Elimination Tool:

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

A 60 kg boy runs up a hill through a height of 6 m in 3 seconds. How much work does he do against gravitational force?

NTS 2016 SMBBMC
Physics
Work, Power and Energy
Elimination Tool:

if electron is moving along positive x axis and where V= Sx*3 then it

A disc, a hoop, and a sphere of the same mass and radius are rolled down from a frictionless, inclined plane. Which has a greater speed on reaching the ground?

NUMS Mock 3
Physics
Circular Motion and Momentum

An astronomical telescope has Magnifying power 5. If the focal length is 20 cm then what is the focal length of the objective?

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

If the temperature of cold reservoir is 12C and that of hot reservoir is 27C, the efficiency of Carnet Engine • All be?

Stokes’ Law is given as:

UHS 2013
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:

An electric bulb is rated at 220 V, 100 W. What is its resistance?

NUMS 2016
Physics
Current Electricity
Elimination Tool:

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

PMC Practice 10
Physics
Electronics
Elimination Tool:

The half-life of Iodine Is

What is the name of the energy which is released when an atom is formed from its constituent particles?

NUMS Mock 3
Physics
Nuclear Physics

If a force of 2N acting through a moment arm of V2 rn produces a torque of V6 Nm, what is the angle between F and r.

When the dimensions of both sides of an equation are equal, then the equation is said to be:

UHS 2011
Physics
Measurements
Elimination Tool:

A capacitor and an inductor are connected to A.C. supply. If we double the frequency of A.C. supply then the effect on reactance of capacitor XC and reactance of inductor XL will be:

NUMS 2019 Cancelled
Physics
Electronics
Elimination Tool:

A microscope has an objective of 10 mm focal length and an eye piece of 25 mm focal length. What is the distance between the lenses, if the object is in sharp focus when it is 10.5 mm from the objective?

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

What is the kinetic energy at the extreme position during SHM?

Which set of the prefixes gives values in increasing order?

UHS 2014
Physics
Measurements
Elimination Tool:

Which one of the following properties is not exhibited by the longitudinal waves?

NUMS Mock 4
Physics
Wave Motion and Sound

Extraterrestial waves are also called:

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

Compton shift is maximum at:

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

Work done, due to centripetal force, for circular motion will be:

NUMS Mock 1
Physics
Circular Motion and Momentum

Whenever the average and instantaneous velocities are equal the body is said to have a:

NTS 2016 SMBBMC
Physics
Motion in Two Dimensions
Elimination Tool:

The unit of velocity is:

PMC Sample 2
Physics
Measurements
Elimination Tool:

The charge on neutron is:

NUMS 2018
Physics
Electrostatics
Elimination Tool:

In hot day white clothes are worn because they are good

Earth is a/an frame of reference

Echo is produced by reflection of sound waves from a denser medium. What is the phase change between sound wave and echo?

NUMS 2019 Cancelled
Physics
Wave Motion and Sound
Elimination Tool:

The number L = 8.0 x 104cm can be expressed as ________.

NUMS 2019 Reconduct
Physics
Measurements
Elimination Tool:

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

A thermocouple is immersed in water at 373 K and the other in ice at 273K. The emf of the thermocouple Is 90 (μ)V for each 1 K difference in temperature between junctions, and the thermocouple resistance is 6 Ω. What current will flow in the galvanometer connected in series with an internal resistance of 30ohms?

NTS 2010
Physics
Heat and Thermodynamics
Current Electricity
Elimination Tool:

If the instantaneous current in a circuit is given by I = A sin (wt) ampere, the RMS value of the current is:

PMC Practice 3
Physics
Alternating Current
Elimination Tool:

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

NUMS 2019 Reconduct
Physics
Forces and Motion
Elimination Tool:

Longitudinal standing wave, in second harmonic mode, is established in a tube that is open at both ends. The length of the tube is 0.8m. What is the wavelength of the waves that make up the standing wave?

PMC Practice 10
Physics
Electromagnetic Waves
Elimination Tool:

The direct exposure of sun light where ozone layer is depleted will cause:

2022 PMC Test 1
Physics
Electromagnetic Waves
Elimination Tool:

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

Energy of fast moving neutron Is?

Which of the following is a type of rectifier?

PMC Practice 15
Physics
Electronics
Elimination Tool:

When the aircraft Concorde is moving in a horizontal plane at a constant speed of 650 ms-1, its turning circle has a radius of 80 km. What is the ratio of the centripetal force to the weight of the aircraft? (g = 9.8 m/s2)

NTS 2013
Physics
Circular Motion and Momentum
Elimination Tool:

Interference is shown by Light

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:

Consider the spectral line resulting from the transition from n=2 to n=1, in atoms and ions given below. The shortest wavelength is produced by:

PMC Sample 3
Physics
Atomic Spectra
Elimination Tool:

A disc, a hoop, and a sphere of the same mass and radius are rolled down from a frictionless, inclined plane. Which has a greater speed on reaching the ground?

NUMS 2019 Cancelled
Physics
Circular Motion and Momentum
Elimination Tool:

Branch of physics which deals with sub atomic particles.

Electric charge on an object is measured as 5 microcoulombs. How the value of this charge can be expressed in terms of base units:

UHS 2012
Physics
Measurements
Elimination Tool:

During the process of nuclear disintegration, when beta particle emission occurs, atomic no. of the atom changes by _____ and the mass number changes by ______.

NUMS 2018
Physics
Nuclear Physics
Elimination Tool:

The phenomena in which certain metals emit electrons when exposed to high-frequency light is known as?

NTS 2014
Physics
Dawn of Modern Physics
Elimination Tool:

Let X be a radioactive element having No nuclei. The time required to decay this element to one half of its initial number No is known as:

NTS 2018
Physics
Nuclear Physics
Elimination Tool:

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:

Three resistors connected in series have Individual voltages labeled V1, V2, and V3, respectively. Which of the following expresses the value of the total voltage V, taken over the three resistors
together?

To remove the huge amount of heat energy in a nuclear reactor, _____ is/are used

NUMS Mock 4
Physics
Nuclear Physics

In a certain circuit, a transistor has a collector current of 10mA and a base current of 40μA. What is the current gain of the transistor?

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

Two capacitors C1 = 3 uF and C2 = 6 uF are in series across a 90 volts D.C. supply. The total capacitance is given by:

NTS 2012
Physics
Electrostatics
Elimination Tool:

If a potential difference of V appears on the plates of a capacitor with capacitance C, then energy stored will be:

Which of the following changes must when a wave changes its medium?

What are the Dimensions of P^2/m, where P is the momentum and m is the mass?

A particle is moving in a circle with radius r and velocity v if radius is doubled keeping the velocity constant, the value of tangential acceleration will be:

Which of the following is the percentage of the original quantity of a radioactive material left after five half–lives approximately.

NUMS Mock 2
Physics
Nuclear Physics

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:

1 rad is equal to how many degrees

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:

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

PMC Practice 3
Physics
Alternating Current
Elimination Tool:

If a wheel of radius r turns through an angle of 30°, then the distance through which any point on its rim moves is?

PMC Sample 1
Physics
Circular Motion and Momentum
Elimination Tool:

Which of the following option(s) represent a vector quantity?

In S.H.M which of the following remains constant?

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 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:

An aeroplane is flying in a straight line at a constant altitude. If a wing gust strikes and raises the nose of the airplane, the nose will bob up and down until the plane eventually returns to its original position. These oscillations are:

NUMS Mock 3
Physics
Oscillations and Simple Harmonic Motion

How many quarks neutron and proton is made up of?

The target in the X ray unit is given a:

NUMS 2018
Physics
Atomic Spectra
Elimination Tool:

If the peak voltage is 9V, calculate the peak to peak voltage.

PMC Practice 8
Physics
Alternating Current
Elimination Tool:

Which one of the following Is correct

Half-life of iodine-131 is 8 days. If 20mg is present initially. How much iodine is left behind after 2 half-lives?

NUMS Mock 1
Physics
Nuclear Physics

A body having translatory motion possesses _____ and _____. In the same way a body having rotatory motion possesses _______ and _______.

NTS 2015 SMBBMC
Physics
Circular Motion and Momentum
Elimination Tool:

Electric conduction is high in:

NUMS 2016
Physics
Physics of Solids
Elimination Tool:

Refrigerator is an example of:

NUMS 2020
Physics
Heat and Thermodynamics
Elimination Tool:

Ammeter Is a galvanometer with:

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

NTS 2013
Physics
Motion in Two Dimensions
Elimination Tool:

The area under force-displacement graph gives us:

NUMS 2020
Physics
Forces and Motion
Elimination Tool:

A balloon Is going upwards with a velocity 12 m/s. it releases a packet when it is at a height of 65 from ground. flow much time the packet will take to reach the ground if g=10 m/s^2?

Speed and Pressure relation of a fluid is given by: