Pa m² is the unit of

In rotation motion the torque is:

If a single convex lens is placed close to the eye, it can be used as a

When the output power equals to one-half of the input power, efficiency of the transformer becomes:

NUMS Mock 4
Physics
Work, Power and Energy

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:

What is the device which is used to measure magnetic field

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

PMC Sample 1
Physics
Circular Motion and Momentum
Elimination Tool:

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

The deviation of I-V graph from straight line is due to:

NUMS Mock 1
Physics
Current Electricity

The entropy of the universe always:

NUMS 2016
Physics
Heat and Thermodynamics
Elimination Tool:

In photo-emission from a metal, if light of λ is replaced by light of wavelength λ / 4 , the maximum kinetic energy of the photoelectrons.

NUMS Mock 1
Physics
Dawn of Modern Physics

The detection and estimation of an element in a mixture is sometimes nearly impossible, if it is present in very minute traces or if it’s chemical properties are very similar to those of other elements in the mixture. An effective technique is developed for these purposes is known as?

NTS 2014
Physics
Nuclear Physics
Elimination Tool:

Which of the following color has the highest energy?

A ball is thrown from some height; it strikes the ground and bounces back to the same height. This scenario represents which situation:

A hydrogen atom in its ground state absorbs 10.2 eV of energy. What is the orbital angular momentum is increased by?

PMC Sample 3
Physics
Atomic Spectra
Elimination Tool:

The expression dp/dt represents

The region that lies between IR and UV regions is called:

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

mho is the unit of 7

Young modulus for the perfectly rigid body is

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:

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:

Bragg’s Law for measurement of wavelength à. of i-rays, using crystal lattice planes having distance d between each other, for constructive interference for integral multiple of i is.

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

If the ionization energy of a hydrogen atom is 13.6 eV, its ionization potential will be:

PMC Sample 1
Physics
Atomic Spectra
Elimination Tool:

The young’s modulus of a given rod of uniform length ? is given by the relation:

ETEA 2018
Physics
Physics of Solids
Elimination Tool:

A machine worker placed a cylinder with a diameter of 18 cm between the plates of a hydraulic press. If he applies a 4.25 x 105N force to the cylinder, the stress on the end of the cylinder due to the applied force is A x 107Pa.

What is the value of A?

NUMS 2019 Cancelled
Physics
Heat and Thermodynamics
Elimination Tool:

Weber x ampere per meter is equal to:

NUMS 2016
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The dimensions of angular velocity (ω) is:

NUMS 2019 Cancelled
Physics
Measurements
Elimination Tool:

A half-wave rectifier uses:

PMC Practice 13
Physics
Electronics
Elimination Tool:

Escape velocity of Jupiter is:

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 current carrying conductor is lying perpendicular to magnetic field and experiencing some force. If the conductor rotates by 60 degrees counter clock wise, the force on it will

If stress is doubled, then volume becomes

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

UHS 2019
Physics
Work, Power and Energy
Elimination Tool:

In a periodic wave, the distance between second and fifth crests is 15 cm, what is the wavelength of the wave?

PMC Sample 1
Physics
Wave Motion and Sound
Elimination Tool:

When a train whistling passes near you, a considerable change in the pitch of the sound is heard. When the train is moving away, the pitch of the sound _____ whereas the pitch of the sound _____ when the train is approaching.

NTS 2019
Physics
Wave Motion and Sound
Elimination Tool:

A bullet of mass 20g leaves the gun with a velocity of 200 m/s. If the mass of gun is 2kg then the speed of recoil of the gun is:

NUMS 2019 Cancelled
Physics
Forces and Motion
Elimination Tool:

The difference between soft and hard X-rays is of:

NUMS Mock 1
Physics
Atomic Structure

Resistivity of Hg is ohmmeter

Displacement of an object with respect to a constant moving (v) frame in the same direction is:

PMC Sample 1
Physics
Forces and Motion
Elimination Tool:

Electric flux Is positive when

The time period of a wave is 1/4 sec. How long does it take 20 complete waves to pass a point?

PMC Sample 1
Physics
Wave Motion and Sound
Elimination Tool:

A metal sphere of radius r is dropped into a tank of water. As it sink at speed v, it experience a drag force F given by F= krv, where k is a constant: What are the SI base units of k?

ETEA 2017
Physics
Measurements
Elimination Tool:

In which of the following scenarios will the K.E be zero?

A spring of force constant 800 N/m has an extension of 5 cm, the work done in extending it from 5 cm to 15 cm

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

Debroglie wavelength for an electron and proton moving at same speed are L and 1; respectively. And frequencies are Fe and Fp respectively. Which of the following is corrract.

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:

The scalar or Dot product of Vectors (3i – 2j + 4k) and (2i + 2j – 3k) is _____.

NTS 2019
Physics
Scalars and Vectors
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:

A coil of 600 turns is threaded by a flux of 8×10-5 webers if this flux is reduced to 3×10-5 webers in 0.015 seconds. The average induced e.m.f. is:

NTS 2011
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

A bullet fired from gun can pierce a target due to

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

A wave passes through a medium; each particle of the medium performs 100 complete vibrations in 5 seconds. What is the frequency of the wave?

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

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

that the supply for the potentiometer is taken?

PMC Practice 8
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:

i.(j*k)

Which of the following can have negative temperature coefficient?

PMC Practice 4
Physics
Physics of Solids
Elimination Tool:

A body moving with velocity V can be stopped by a force F in direction of it. The same body moving with velocity 5 V can be stopped by a force 5F in distance equal to:

NUMS 2017
Physics
Forces and Motion
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 option in the following best explains Base of a transistor?

NUMS 2017
Physics
Electronics
Elimination Tool:

In a coil, when current changes from 10 A to 4 A in 1 s. An induced emf of 1.2 V is induced across the coil. The self – inductance of the coil is:

NUMS Mock 3
Physics
Magnetism and Electromagnetic Induction

If the grating element is made 1/10th the resolving power will become

Absolute zero is equivalent to:

NUMS Mock 2
Physics
Heat and Thermodynamics

Four particles independently move at the same speed in a direction perpendicular to the same magnetic field. Which particle is deflected the most?

NTS 2017
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The power of a concave lens is

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

NUMS 2016
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

Weight Is equivalent to which of the following

Rain is vertically downwards with the velocity of 30m/s , a wind blows from north to south direction with 10m/s then at what angle should the umbrella of the person be held and in which

An element whose atomic number is same but mass number is different is called:

NUMS 2019 Reconduct
Physics
Nuclear Physics
Elimination Tool:

A wave passes through a medium, each particle of the medium performs 100 complete vibrations in 5 seconds. What is the frequency of the wave:

PMC Sample 1
Physics
Wave Motion and Sound
Elimination Tool:

if 5.1 and 3.014 added. the number of significant figures will be in final answer

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:

Beta rays cannot be stopped by:

PMC Practice 11
Physics
Electromagnetic Waves
Elimination Tool:

The direction of induced emf is given by which of the following law?

What will be the energy in Joules, when an electron acquires a speed of 10 m/s?

NTS 2016 DUHS & JSMU
Physics
Dawn of Modern Physics
Elimination Tool:

The film of oil on water shows colour pattern when illuminated by white light due to:

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

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

UHS 2019
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

When we lift an object, we do work against which of the following:

1) Friction                      2) Gravity

The speed of the sound in air is 332 m/s. The speed of sound at 22 degrees centigrade will be:

NUMS Mock 4
Physics
Wave Motion and Sound

The length and width of a rectangular plate are measured to be 15.3 mm and 12.50 mm. Find the area of the plate up to an appropriate number of significant figures.

NUMS 2017
Physics
Measurements
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 atomic spectra deals with the measurement of?

NTS 2014
Physics
Atomic Spectra
Elimination Tool:

Gamma-ray (?) can produce ionization in which of the following way/s?

I. It may lose all its energy in a single encounter with the electron of an atom (Photoelectric effect).

II. It may lose only a part of its energy in an encounter (Compton effect).

III. Very few of very high energy ? ray photons may impinge directly on heavy nuclei, be stopped and annihilated giving rise to electron-positron pairs (The materialization of energy).

NTS 2013
Physics
Dawn of Modern Physics
Elimination Tool:

Polarization of light shows that it is:

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

When the force and the displacement are in the opposite directions, the work done by the force is ______.

NTS 2015 DUHS and JSMU
Physics
Forces and Motion
Elimination Tool:

The unit of velocity is:

PMC Sample 2
Physics
Measurements
Elimination Tool:

0.37q charge Is stored on the capacitor, what will be the current?

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:

The binding per nucleon of deuteron (21H) and helium nucleus (42He) are 1.1 MeV and 7 MeV respectively. If two deuterons merge to form a single helium nucleus, the energy released will be:

NUMS 2019 Cancelled
Physics
Nuclear Physics
Elimination Tool:

How much more thumb pressure must a nurse use to administer an injection with a hypodermic needle of inside diameter 0.30 mm compared to one with inside diameter 0.60 mm? Assume that the two needles have the same length and that the volume flow rate is the same in both cases.

NUMS Mock 1
Physics
Fluid Dynamics

Which of the following is different for isotopes?

PMC Practice 3
Physics
Atomic Spectra
Elimination Tool:

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

UHS 2019
Physics
Alternating Current
Elimination Tool:

The stopping potential depends on

An electron cannot reside inside a nucleus is explained by:

PMC Practice 5
Physics
Atomic Spectra
Elimination Tool: