What are dimensions of Magnetic Flux

A man throws a ball vertically upward in the compartment of an accelerated train. The ball will fall:

NUMS Mock 1
Physics
Motion in Two Dimensions

Q.125 SI Unit of current is?

The SI unit for intensity of sound is:

NTS 2015 SMBBMC
Physics
Wave Motion and Sound
Elimination Tool:

If stress is applied on a body then the ratio of change in volume to original volume will be:

NUMS 2016
Physics
Physics of Solids
Elimination Tool:

If A and B arc two vectors, area of parallelogram formed by these vectors will be?

1. a) AB b) A . c) AB cos 0                      d) lAx131

A traveling wave, in which the particles of the disturbed medium move perpendicular to the direction of propagation of the wave is called:

NUMS Mock 3
Physics
Wave Motion and Sound

Characteristic x-rays are produced by:

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

Incident rays of light parallel to the principal axis of a convex lens, after refraction by the lens, will:

NTS 2017
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

A stone is thrown horizontally from 2.4 m above the ground at 35 m/s. The wall is 14 m away and 1 m high. At what height will the stone reach when at the wall? Where will the stone land?

NTS 2016 DUHS & JSMU
Physics
Motion in Two Dimensions
Elimination Tool:

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

The 10 nanofarad (10×10-9 F) parallel plate capacitor holds a charge of magnitude 50uc on each plate. If the plates are separated by a distance of 0.885mm, what is the area of each plate?

NUMS Mock 3
Physics
Electrostatics

Negative strain indicates that

What will be impact on the frequency of a simple pendulum if the length of pendulum is halved
and value of gravity is doubled?

A magnetic needle is placed in a uniform magnetic field and is aligned with the field. The needle is now rotated by an angle of 60 degrees and work done is W. The torque on the magnetic needle at this position is

NUMS 2014
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The wavelength associated with an electron is of the order of:

PMC 2020
Physics
Wave Motion and Sound
Elimination Tool:

Equations of kinetics are valid only when the acceleration is:

NTS 2018
Physics
Forces and Motion
Elimination Tool:

The target in the X ray unit is given a:

NUMS 2018
Physics
Atomic Spectra
Elimination Tool:

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 2019 Cancelled
Physics
Physics of Solids
Elimination Tool:

Magnifying power of simple microscope

If you wish to decrease the resistance of a circuit, you will add the resistors in ________.

NTS 2014
Physics
Current Electricity
Elimination Tool:

If a compressible medium has bulk modulus denoted by B and density denoted by P, then a Newton’s formula for the speed of sound in a medium is _____.

NTS 2019
Physics
Wave Motion and Sound
Elimination Tool:

A fixed mass of an ideal gas absorbs 1000 J of heat and expands under a constant pressure of 20 kPa from a volume of 25 x 10-3 m3 to a volume of 50 x 10-3 m3. What is the change in the internal energy of the gas?

NTS 2017
Physics
Heat and Thermodynamics
Elimination Tool:

If an electron jumps from 68′ orbit to 7 orbit, the increase in radius will be:

A ball is thrown vertically upward with a velocity of 98 m/s. How long does it take to reach its highest point?

NTS 2016 SMBBMC
Physics
Motion in Two Dimensions
Elimination Tool:

A body is hanging from a rigid support by an extensible string of length L. It is struck inelastically by an identical body of mass m with horizontal velocity v =√2gl , the tension in the string increases just after striking by:

NTS 2019
Physics
Circular Motion and Momentum
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 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 will be the velocity of a body revolving In a circle of radius 2m with an angular velocity of 1 rev/sec?

What force should be applied on a 10 kg body so that it moves down in a vacuum with an acceleration of 3 m/s2 ? (Take g=9.8 m/s2)

NTS 2013
Physics
Forces and Motion
Elimination Tool:

1 radian is equal to:

PMC 2020
Physics
Circular Motion and Momentum
Elimination Tool:

Photoelectric effect is not produced by:

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe:

UHS 2013
Physics
Fluid Dynamics
Elimination Tool:

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:

The time rate of change of linear momentum of a body is equal to:

NUMS 2020
Physics
Forces and Motion
Elimination Tool:

Human body emits which of the following radiation?

Minimum energy required to eject an electron from metal surface is called:

UHS 2019
Physics
Dawn of Modern Physics
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:

The acceleration is a _____.

PMC Practice 6
Physics
Scalars and Vectors
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 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:

In case of harmonic oscillator total energy remains

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

In the SI system of units, the fundamental units of length, mass, and time are ____, _____ and respectively:

NTS 2019
Physics
Measurements
Elimination Tool:

The newton-second is the unit of:

PMC 2020
Physics
Circular Motion and Momentum
Elimination Tool:

The product of frequency and time period is equal to:

NUMS 2020
Physics
Wave Motion and Sound
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

Value of Wien’s constant is?

If the body is rotating with uniform angular velocity, then its torque is:

NUMS Mock 2
Physics
Circular Motion and Momentum

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 of the following is the angle of projection of a projectile if its range is equal to its height?

NUMS 2020
Physics
Forces and Motion
Elimination Tool:

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:

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

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

NUMS Mock 1
Physics
Fluid Dynamics

Non-inverting amplifier circuits have?

PMC Practice 2
Physics
Electronics
Elimination Tool:

A container is divided into two equal portions. One portion contains an ideal gas at pressure P and temperature T while the other portion is a perfect vacuum. If a hole is opened between two portions:

NUMS Mock 3
Physics
Heat and Thermodynamics

________ are very high energy electromagnetic radiations of the extremely short wavelength emitted from the nuclei of radioactive atoms originating from the high energy transitions of the nucleons in the nuclei.

NTS 2015 DUHS and JSMU
Physics
Atomic Spectra
Elimination Tool:

Ratio of Nano to Atto Is:

Which of the following is an instrument for monitoring radiations:

NUMS 2016
Physics
Nuclear Physics
Elimination Tool:

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

NUMS 2016
Physics
Nuclear Physics
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 Mock 4
Physics
Forces and Motion

Flux passing through an area does not depend upon

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 total outward flux over any closed hypothetical surface called _____ is equal to the total charge enclosed divided by ε irrespective of how the charge is distributed.

NTS 2015 DUHS and JSMU
Physics
Electrostatics
Elimination Tool:

For adiabatic process, the first law of thermodynamics is:

NUMS Mock 3
Physics
Heat and Thermodynamics

If placed in contact, the focal length of the combination of two convex lenses of equal focal lengths f,
will be

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

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

NUMS 2020
Physics
Work, Power and Energy
Elimination Tool:

When charge flows through a wire, it produces:

The electric field of a point charge is in shape.

If constant temperature conditions are applied to a gas container, then the volume of the mass of that gas tends to increase by:

NTS 2018
Physics
Heat and Thermodynamics
Elimination Tool:

Light signals passes through multimode graded fibre due to

If two point charges of charge q1 and q2 are placed at distance d, then the force between them is proportional to:

PMC Sample 1
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:

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:

What is 1 radian in degrees approximately

PMC Sample 3
Physics
Measurements
Elimination Tool:

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

NTS 2010
Physics
Motion in Two Dimensions
Elimination Tool:

In the case of linear deformation, the ratio of tensile stress to tensile strain is called:

UHS 2018
Physics
Physics of Solids
Oscillations and Simple Harmonic Motion
Elimination Tool:

The internal energy of a system during an isothermal process:

PMC 2020
Physics
Heat and Thermodynamics
Elimination Tool:

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

NUMS Mock 3
Physics
Electrostatics

A wave of light having the wave equation r = ro sin(wt) reflects from the water surface. After reflection, the equation of the wave will be:

A block with a mass of 0.1 kg is attached to a spring and placed on a horizontal frictionless table. The spring is stretched 20 cm when a force of 5 N is applied, the spring constant is:

NTS 2011
Physics
Forces and Motion
Elimination Tool:

When describing the isotopes of the same element, the most accurate statement is that they have:

NTS 2017
Physics
Atomic Spectra
Elimination Tool:

Weber x ampere per meter is equal to:

NUMS 2016
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

The energy stored in the capacitor is written as:

NUMS Mock 2
Physics
Electrostatics

Work is a

PMC Sample 2
Physics
Scalars and Vectors
Elimination Tool:

Two charges of same magnitude are placed, the force between the charges will be maximum in presence of which medium?

Center of gravity of a cup Iles

Product of Force and Time Is

Strain energy in a deformed energy is stored in the form of:

UHS 2015
Physics
Physics of Solids
Elimination Tool:

The radius of the moon is 27% off the earth’s radius and its mass is 1.2% of the earth’s mass. Find the acceleration due to gravity on the surface of the moon:

NTS 2010
Physics
Gravitation
Elimination Tool:

An automobile is moving forwards with uniform velocity due to the force exerted by its engine. If the force is doubled with the velocity remaining constant what happens to its total power?

UHS 2019
Physics
Work, Power and Energy
Elimination Tool:

) Which can damage eye?