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

NUMS Mock 1
Physics
Forces and Motion

The temperature of a body at 100 °C is increased by Δ? as measured on the Celsius scale. How is this temperature change expressed on the Kelvin scale?

NTS 2013
Physics
Heat and Thermodynamics
Elimination Tool:

Two vectors A and B both have magnitude of 5N and the angle between them is 135, then magnitude of A x B will be

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

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

2022 PMC Test 1
Physics
Electromagnetic Waves
Elimination Tool:

A photosensitive material would emit electrons if it is excited by a photon beyond a threshold. To cross the threshold, what should be increased?

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

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

NUMS Mock 1
Physics
Fluid Dynamics

The area under force-displacement graph gives us:

NUMS 2020
Physics
Forces and Motion
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:

Capacitance increases by

The principle behind the working of cathode ray oscilloscope is:

PMC Sample 1
Physics
Electronics
Magnetism and Electromagnetic Induction
Elimination Tool:

The down quark has charge ________.

PMC Practice 5
Physics
Atomic Spectra
Elimination Tool:

Consider two capacitors with capacitance 2µF and 4µF. With which type of connection will the 4µF capacitor have a greater amount of stored energy than the 2µF capacitor?

PMC Practice 2
Physics
Alternating Current
Elimination Tool:

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

NUMS Mock 1
Physics
Wave Motion and Sound

Nucleus with an excess of neutrons may decay radioactivity with the emission of:

NTS 2017
Physics
Nuclear Physics
Elimination Tool:

Which of the following statements is not consistent with Bohr’s set of postulates regarding the hydrogen atom model with regard to the emission and absorption of light?

NTS 2013
Physics
Atomic Spectra
Elimination Tool:

ML^2T^-3 is the dimension of:

According to the first law of thermodynamics, ΔU = Q + W, where ΔU Is the increase in internal energy of the system, Q is the heat transferred to the system and W is the external work done on the system.
Which of the following is NOT a correct expression?

NTS 2010
Physics
Heat and Thermodynamics
Elimination Tool:

For adiabatic process, the first law of thermodynamics is:

NUMS 2016
Physics
Heat and Thermodynamics
Elimination Tool:

The laws of motion show the relation between

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

mλ=2dsin(θ) this relation is called as

NTS 2015 DUHS and JSMU
Physics
Optics, Nature of Light and Optical Instruments
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

Alpha, Beta, and Gamma radiations are emitted from a radioactive substance:

NUMS 2017
Physics
Nuclear Physics
Elimination Tool:

An apple is thrown with a speed of 30 m/s in a direction 30° above the horizon. Find out its horizontal range. (g= 9.8 m/s2)

NTS 2015 DUHS and JSMU
Physics
Motion in Two Dimensions
Elimination Tool:

On the ground, the gravitational force on a satellite is W. What is the gravitational force on the satellite when at a height R/50, where R is the radius of the Earth?

NTS 2013
Physics
Gravitation
Elimination Tool:

Rate of change in displacement is known as:

PMC Sample 1
Physics
Forces and Motion
Elimination Tool:

The angle made by the coil of an AC generator at a time Interval 3T/4 is?

A student is performing a lab experiment on simple harmonic motion. He has two different springs (with force constants k1 and k2) and two different blocks (of masses m1 and m2). If k1 =2k2, and m1 = 2m2 , which of the following combinations would give the student the spring-block simple harmonic oscillator with the shortest period?

NTS 2014
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

The current measuring part of the Avometer consists of a number of low resistors connected:

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

The process of adding controlled impurities to a semiconductor is known as _______. The amount of impurity added to an intrinsic (pure) semiconductor varies its level of conductivity.

NTS 2018
Physics
Physics of Solids
Elimination Tool:

A 50 watt bulb is operated by 120 volts. What is the current through the bulb?

NTS 2016 SMBBMC
Physics
Current Electricity
Elimination Tool:

A proton has mass m and charge q. It is suspended in electric and gravitational field. What is the magnitude of electric field?

PMC Sample 3
Physics
Electrostatics
Elimination Tool:

The process of natural decay of some heavy nuclides is because of the phenomenon:

NTS 2018
Physics
Nuclear Physics
Elimination Tool:

Radiations emitted by human body lie in which of the following series?

A type of metals containing alloys, ceramics etc., when heated their temperature reaches to a state called Transition temperature state and their resistance reaches to zero. These types of metals are called:

A 5 watt LED bulb converts 80% of the power into light photons wavelength 660 nm. What is the number of photons emitted from the bulb in one second.

UHS 2018
Physics
Dawn of Modern Physics
Elimination Tool:

Photocell is similar to:

PMC Sample 2
Physics
Dawn of Modern Physics
Elimination Tool:

An alternating voltage source is connected to a resistor R, and a capacitor C, then which of the following statements about phase angle between voltage V and current I is correct?

NUMS 2019 Cancelled
Physics
Alternating Current
Elimination Tool:

If voltage is 100V current is 10A and R Is 5ohm then internal resistance?

If v = a + bt, the dimensions of a and b are

1 pascal = atm

Joules

If the unit vectors i, j, k are perpendicular to each other therefore

i.i = j.j = k.k = ______.

I.j = j.k = k.i = ______.

NUMS Mock 2
Physics
Scalars and Vectors

Minimum velocity needed to put the satellite into orbit is

The scalar product of (2i – j + 3k) . (31 + 2j – k) i?

NTS 2014
Physics
Scalars and Vectors
Elimination Tool:

A sound wave travels with a speed of 330ms−1 in air. If the wavelength of the wave is 3.3m, then the frequency of the wave is ______.

PMC Sample 2
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:

Initial velocity of the object with which it goes out of the Earth’s gravitational field, is called:

NUMS 2020
Physics
Gravitation
Elimination Tool:

In elastic collision

Entropy is the measure of of a system

A body is moving in a circle at constant speed. Which statement is true?

PMC Sample 1
Physics
Circular Motion and Momentum
Elimination Tool:

Negative strain indicates that

Weight Is equivalent to which of the following

Acceleration of a body executing SHM is directed towards:

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:

The points which are in phase are separated from one another through a distance of :

PMC Sample 1
Physics
Wave Motion and Sound
Elimination Tool:

The sum of all forms of molecular energies (Kinetic and Potential) of a substance is termed as?

UHS 2019
Physics
Work, Power and Energy
Elimination Tool:

White light gives spectrum after undergoing:

PMC Sample 2
Physics
Dawn of Modern Physics
Elimination Tool:

At what angle is the range of projectile the maximum?

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

NUMS Mock 4
Physics
Nuclear Physics

There is no noticeable boundary between core and cladding.

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

NUMS 2019 Reconduct
Physics
Measurements
Elimination Tool:

If the potential difference of 1 volt is applied across the end of a conductor and the current flowing through the conductor is one ampere then the resistance of the conductor is said to be?

NTS 2015 SMBBMC
Physics
Electrostatics
Elimination Tool:

The de Broglie wavelength of an electron travelling with a speed of 1.0 x 107m/s is equal to, (h=6.6 x 10-34 Js and me= 9.1 x 10-31 kg)

UHS 2018
Physics
Dawn of Modern Physics
Elimination Tool:

Electron volt is the unit of

S.I. Unit of rate of flow of a fluid :

NUMS 2018
Physics
Fluid Dynamics
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:

How can we define linear magnification produced by a lens?

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

least distance of distinct vision

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:

The unit of impulse is same as of

A particle of mass 5 mg moves with a speed of 8 m/s. Calculate its de Broglie wavelength (h = 6.63 x 10-34 Js)

NTS 2015 DUHS and JSMU
Physics
Atomic Spectra
Elimination Tool:

If f1 and f2 are frequencies of two tuning forks, such that f1 < f2, then number of beats produced in one second are: PMC Sample 2 Physics Oscillations and Simple Harmonic Motion Elimination Tool:

If a Force F of magnitude 5N makes an angle of 60 with x-axis, the x-component of the vector will
be:

Which photon carries the most energy?

PMC 2020
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

Which of the following has greater speed In space?

Light signals passes through multimode graded fibre due to

If a wire having current 10A has a 3T magnetic field, what will be the magnetic field at a point from the wire at double the distance?

NUMS 2016
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

One complete circle is equal to:

NUMS 2020
Physics
Circular Motion and Momentum
Elimination Tool:

By increasing the area of the plates and decreasing the distance between them, the capacitance of a capacitor:

NUMS 2020
Physics
Electrostatics
Elimination Tool:

A particle is moving in a uniform circular path. If its mass is reduced to half of its original mass, the force acting upon it will be?

A ball falls vertically and bounces on the ground. The following statements are about the forces acting while the ball is in contact with the ground. Which statement is correct?

NTS 2017
Physics
Forces and Motion
Elimination Tool:

The energy stored inside a capacitor is given by the relation:

NUMS 2019 Reconduct
Physics
Electrostatics
Elimination Tool:

A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1kV, its kinetic energy will be:

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

Hooke’s law states that under normal conditions:

NUMS 2019 Cancelled
Physics
Physics of Solids
Elimination Tool:

Which of the following is an instrument for monitoring radiations:

NUMS 2016
Physics
Nuclear Physics
Elimination Tool:

In an experiment, an object was placed on the principal axis of a convex lens 25 centimetres away from the lens. A real image 4 times the size of the object was obtained. The focal length of the lens is:

NTS 2017
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:

In Young’s double-slit experiment, if d is the separation between two slits 1 is the wavelength of light and θ is the angle of the line from the centre of slits to the point of observation on the screen; then for maxima (bright fringe); the formula is _________.

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

• Q.132 In stretched string the frequency of vibration is given by f=1/2LVF/m. In this equation m has dimension

When an Operational amplifier is used as Inverting amplifier, then angle between its output and input signal is:

NUMS 2019 Cancelled
Physics
Electronics
Elimination Tool:

Standing pattern of Nodes and Antlnodes form:

Final image produced by a compound microscope is

If a pipe is closed at one end and open at the other, the closed end is a:

PMC Sample 3
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool: