An aircraft of wingspan 50 m flies horizontally at an area where the vertical component of the Earth’s magnetic field is 2.0 x 10-5T.

In order to produce an emf of 1 volt between the aircraft’s wingtips, its speed should be:

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

The velocity of an object increases from 0 to 10 m/s in 2 seconds. The distance covered by the object is _________.

NUMS 2019 Reconduct
Physics
Motion in Two Dimensions
Elimination Tool:

X rays are similar in nature to:

NUMS 2018
Physics
Atomic Spectra
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:

For one mole of gas, the relation for specific heat capacity at constant pressure ‘Cp’ and at constant volume ‘Cv’ is ________.

NUMS Mock 1
Physics
Heat and Thermodynamics

Two glass prisms Pl and P2 are to be combined together to produce dispersion without deviation. The angle of the prisms P1 and P2 are selected as 40 and 30 respectively. If the refractive index of prism Pl is 1.54, then that of P2 will be:

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

The slope of distance – time graph will always be:

PMC 2020
Physics
Motion in Two Dimensions
Elimination Tool:

Value of resistivity of iron Is

A car going around a certain curve at a speed of 25 km/h has a centripetal force acting on it of 100 N. If the speed of the car is doubled, the centripetal force:

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

A/An _____ is that in which the momentum of the system as well as the kinetic energy of the system before and after the collision is conserved i.e. remains the same.

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

What is the quark composition of a Proton?

NUMS Mock 2
Physics
Nuclear Physics

The dimensions of acceleration are:

NTS 2011
Physics
Measurements
Elimination Tool:

The time duration between two consecutive heartbeats of a normal human being is

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

NUMS Mock 1
Physics
Fluid Dynamics

_____ are such nuclei of an element that have the same mass number A, but have different charge number Z.

PMC Practice 4
Physics
Atomic Spectra
Elimination Tool:

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

When an electron jumps from outer to 5th orbit, then the spectral lines fall into region.

Product of Force and Time Is

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

PMC Practice 8
Physics
Alternating Current
Elimination Tool:

If the volume of a gas is fixed then on increasing its temperature, its pressure______

NTS 2016 SMBBMC
Physics
Heat and Thermodynamics
Elimination Tool:

What will be the energy stored In an inductor of length 2m if a current of 10A passes through it

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

What will be the velocity of a body revolving In a circle of radius 2m with an angular velocity of 1 rev/sec?

Consider a peak rectifier fed by a 60-Hz sinusoid having a peak value Vp = 100 V. Let the load resistance R = 10 kΩ. Calculate the fraction of the cycle during which the diode is conducting:

PMC Practice 13
Physics
Electronics
Elimination Tool:

• Q.75 Velocity is a

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:

Apparent weight of a body In an elevator accelerating downwards is given by

In microwave ovens ____ is used to heat the food

PMC Practice 33
Physics
Electromagnetic Waves
Elimination Tool:

The frequency of a string on a musical instrument can be changed either by:

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

Energy emitted in the form of visible radiation is called:

2022 PMC Test 1
Physics
Electromagnetic Waves
Elimination Tool:

If a half wave rectifier is used to convert 50Hz AC into DC, then the number of pulses present in rectified voltage is:

PMC Sample 1
Physics
Alternating Current
Elimination Tool:

How much angle does the vector 2i+3j makes with y axis.

Characteristic x-rays are produced by:

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

A star moving away from earth shows?

PMC Practice 5
Physics
Atomic Spectra
Elimination Tool:

Unit of Magnetic Flux is

At which of the following places, motion of simple pendulum becomes slowest:

NUMS 2015
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

Which material is used as common conductor In daily use?

If voltage of a capacitor is 60 v then what will be the voltage if diamond is present as •dielectric

If the temperature is increased from 200K to 800K, then what would be the change in pressure at constant volume?

NUMS Mock 2
Physics
Heat and Thermodynamics

For adiabatic process, the first law of thermodynamics is:

NUMS Mock 3
Physics
Heat and Thermodynamics

Unit of induced emf is

Which of the following is incorrect?

The energy stored in the capacitor is written as:

NUMS Mock 2
Physics
Electrostatics

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

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

If ‘0.8 i + 0.5 j + ck’ represents a unit vector, the value of ‘c’ is:

NUMS 2019 Cancelled
Physics
Scalars and Vectors
Elimination Tool:

Which one of the following statements is true concerning the motion of an ideal projectile launched at an angle of 45° to the horizontal?

NTS 2014
Physics
Motion in Two Dimensions
Elimination Tool:

The existence of positron was discovered in the:

PMC Sample 3
Physics
Dawn of Modern Physics
Elimination Tool:

Species of the same element that have the same atomic number “Z” but have different mass number “A” are called ____ of that element.

NUMS 2017
Physics
Nuclear Physics
Elimination Tool:

Presence of Photon was confirmed by

For projectile motion, in the absence of air resistance:

NUMS Mock 1
Physics
Motion in Two Dimensions

When frequency of applied periodic Force is equal to the natural frequency of harmonic oscillator then the _______ of oscillator _____.

NUMS 2019 Reconduct
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

If the length of a current carrying solenoid is doubled keeping the number of turns same and the current is increased to 9 times, the value of magnetic field compared to the original magnetic field B will be:

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:

Under what condition an object will have zero displacement but non zero distance?

PMC 2020
Physics
Circular Motion and Momentum
Elimination Tool:

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

NTS 2012
Physics
Nuclear Physics
Elimination Tool:

If a car moves from 15 m/s to 5 m/s in 10 sec then average acceleration is

PMC Sample 3
Physics
Motion in Two Dimensions
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 2015
Physics
Circular Motion and Momentum
Elimination Tool:

In RLC series circuit at resonance, the A.C voltage across Resistance R, Inductance L and capacitance C are 5V, 10V and 10 V respectively. The A.C voltage applied to the circuit will be:

NUMS 2015
Physics
Alternating Current
Elimination Tool:

A wire of resistance R is bent in the form of a circle the resistance between two points on the circumference of the wire and at the end of the diameter of circle is

NUMS 2019 Reconduct
Physics
Current Electricity
Elimination Tool:

In a step-down transformer, the current in the primary coil is ______ than that in the secondary coil.

PMC 2021 Tested
Physics
Alternating Current
Elimination Tool:

1 pascal = atm

A.C generator can be converted into D.0 generator by

Monochromatic light means the light having:

NUMS 2018
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

if a car starts from rest and reaches 20 m/s velocity in 10 s then acceleration is:

PMC Sample 3
Physics
Motion in Two Dimensions
Elimination Tool:

Centrifugal force of a body depends upon?

Mutual inductance has a practical role in performance of:

PMC Practice 4
Physics
Alternating Current
Elimination Tool:

The potential energy at the mean position of a pendulum is:

PMC 2021 Tested
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

Red light is used in photographic dark room because of:

NUMS Mock 4
Physics
Optics, Nature of Light and Optical Instruments

At least how many diodes are required to covert A.0 fully into D.C?

Infrasonic waves have a frequency of:

PMC 2021 Tested
Physics
Electromagnetic Waves
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:

Radiation cause damage in a)

Which of the following does not travel in vacuum?

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

Which of the following series lies in the ultraviolet range:

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

In an astronomical telescope, the distance between the objective and eyepiece is called:

NTS 2013
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

_______ is a device which makes use of mutual induction for stepping up or down an alternating e.m.f.

NTS 2012
Physics
Magnetism and Electromagnetic Induction
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 2uF capacitor is connected to a 10 V dc supply, if ‘Q’ represents the charge on each plate and ‘E’ the energy stored on each plate, which of the following represents the values of Q and E?

NUMS 2019 Cancelled
Physics
Electrostatics
Elimination Tool:

Which of the following have low ionization and high penetrating power?

What is the change in kinetic energy of a proton when it is accelerated through a potential difference of 2MV?

PMC Sample 1
Physics
Electrostatics
Elimination Tool:

In SI units, the unit of Candela is used for the measurement of:

NTS 2016 DUHS & JSMU
Physics
Measurements
Elimination Tool:

Which of the following particles has greater wavelengths having the same velocity?

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

A row of 25 decorative lights, connected in series, is connected to a main transformer. When the supply is switched on, the lights do not work. The owner uses a voltmeter to test the circuit. When the voltmeter is connected across the third bulb in the row, a reading of zero is obtained. Which of the following cannot be the only fault in the circuit?

NTS 2017
Physics
Current Electricity
Elimination Tool:

The range of wavelengths for visible light is between _______.

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

Which rays are used in LASER?

PMC 2021 Tested
Physics
Electromagnetic Waves
Wave Motion and Sound
Elimination Tool:

If a voltage of 9V is applied between ends of a wire whose resistance is 0.2 ohm, what will be the resulting current?

NTS 2015 SMBBMC
Physics
Current Electricity
Elimination Tool:

What should the distance of an object from a convex lens of focal length f=10 cm in order to produce an erect image twice as large as the object?

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

The stopping potential depends on

Wave fronts coming from small light bulb

Which of the following remains unchanged in a transformer.

PMC Sample 3
Physics
Alternating Current
Elimination Tool: