A body Is dropped from a height 175m, how much time will it take to reach the ground?

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 Mock 2
Physics
Oscillations and Simple Harmonic Motion

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:

For a satellite so that it could stay over the same point on Earth’s surface the orbital radius r is given by ________.

NUMS 2019 Reconduct
Physics
Gravitation
Elimination Tool:

Magnetic effect of electric current was first discovered by

When a wire is compressed and it’s radius becomes 2R then it’s resistance will be:

PMC 2020
Physics
Current Electricity
Elimination Tool:

If the waves interfere constructively, the amplitude of the resulting wave would be:

NUMS 2018
Physics
Wave Motion and Sound
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:

Dimension of power?

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:

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

PMC Practice 5
Physics
Electronics
Elimination Tool:

Two resistors R1 and R2 may be connected either in series or in parallel across a battery of zero internal resistance. It is required that the joule heating for parallel combination be five times that for series combination. If R1 = 100Ω, find possible values of R2.

NTS 2013
Physics
Current Electricity
Elimination Tool:

If momentum is increased by 20% then K.E. increases by :

PMC Sample 2
Physics
Circular Motion and Momentum
Elimination Tool:

Which of the following is a unit of Work?

If both inputs “A” and “B” are ON and the output is also ON. This type of gate is known as:

NUMS Mock 2
Physics
Electronics

Two negative charges are present at a distance d. A third positive charge is placed somewhere between these charges. This positive charge will be in equilibrium.

1 pascal = atm

An Inductor of 1H Is connected across a 220V, 50Hz supply. The peak value of current is approximately:

In what form is the energy stored in a charged capacitor?

PMC 2020
Physics
Electrostatics
Elimination Tool:

If the speed of an object is doubled, its Kinetic Energy will

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:

EEG is related to:

A body moves on a circular path subtending an angle of 2 radians at the center of a circle of radius 3.5 meters. The linear displacement of the body is _________.

NUMS 2019 Reconduct
Physics
Circular Motion and Momentum
Elimination Tool:

if particles are displaced In direction perpendicular to waves then waves are? a)

A line normal to the wavefront, showing the direction of the propagation of light is called the:

PMC Practice 2
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

A solar day is the time interval between two successive appearances of the sun overhead. The time that is referred to the rotation of the earth about its axis is called:

NTS 2018
Physics
Gravitation
Elimination Tool:

Magnetic force on a moving charge depends upon:

NTS 2016 SMBBMC
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

An electric cell of e.m.f E, is connected across a copper wire of diameter d and length L. The drift velocity of electrons in the wire is v0. If the length of the wire is changed to 2L, the new drift velocity of electrons in the copper wire will be:

NUMS 2014
Physics
Current Electricity
Elimination Tool:

Least count of micrometer screw gauge is

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 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

Suppose A =4.1, and B= 3.26 and the result from calculator comes to be 1.00876543. What should be the correct number of significant figures In final answer If multiplication and division only?

An electron cannot reside inside a nucleus is explained by:

PMC Practice 5
Physics
Atomic Spectra
Elimination Tool:

Work is a

PMC Sample 2
Physics
Scalars and Vectors
Elimination Tool:

A particle is projected at an angle of 45 degrees with a velocity of 9.8 m/s. The horizontal range will be:

(g=9.8 m/s2)

NTS 2012
Physics
Motion in Two Dimensions
Elimination Tool:

• Q.75 Velocity is a

A football, at rest on the ground, is kicked with an initial velocity of 10 m/s at a launch angle of 30°. Calculate its total flight time, assuming that air resistance is negligible.

NTS 2014
Physics
Motion in Two Dimensions
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:

For the first time in 1914, Henry Moseley used X-rays for the determination of:

NTS 2018
Chemistry
Atomic Spectra
Elimination Tool:

Which type of current passes through extrinsic semiconductors diode?

The branch of Physics in which we study the properties of light and its applications on optical instruments is called?

Number of Significant figures in 0.001634 Is:

______ is defined as the sensation that sound produces in the ear of a listener and is clearly related to the frequency of sound. Frequency and ______ are both measured in Hertz (Hz). Thus greater the frequency the greater the _____ and lower the frequency lower the _______.

NTS 2017
Physics
Wave Motion and Sound
Elimination Tool:

What is the angle made by the vector -i-5j with x-axis?

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:

The rate of change of angular velocity with respect to _____ defines angular acceleration.

NTS 2015 SMBBMC
Physics
Circular Motion and Momentum
Elimination Tool:

The acceleration is a _____.

PMC Practice 6
Physics
Scalars and Vectors
Elimination Tool:

For a stiff spring, the value of spring constant is:

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

Fluorescence is produced when cathode rays strike on:

PMC 2021 Tested
Physics
Dawn of Modern Physics
Elimination Tool:

A torold is?  l• A circular ring shape of a coil. II- A solenoid bent In shape of a circle. a) I only b) II only

If 60 capacitors each of Capacitance C are connected in series and then in parallel what is the ratio of Cs/Cp=?

If the input frequency of a full-wave rectifier is 50 Hz, its ripple frequency is:

PMC 2021 Tested
Physics
Electronics
Elimination Tool:

What is farad of electricity?

_______ 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:

Electrons are emitted in the production of X rays by:

NUMS Mock 1
Physics
Atomic Spectra

The base units of Young’s Modulus are:

NUMS 2019 Reconduct
Physics
Measurements
Elimination Tool:

1 Inch = —- cm

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

Technique for detecting the pressure of objects under water by acoustical echo is called:

NUMS 2018
Physics
Wave Motion and Sound
Elimination Tool:

Transvers waves can transfer their energy on, In

The moment of inertia of a solid sphere of mass ‘m’ having radius ‘r’ about a line passing through its center is:

NUMS Mock 2
Physics
Circular Motion and Momentum

Who was awarded Nobel Prize (1921) for explanation of Photoelectric Effect?

The force applied on unit area to produce any change in the volume or length of a body is called:

NUMS 2017
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

The stopping potential depends on

If the value of g is made g/16, what will be the effect on time period of pendulum?

A guy is standing in a lift falling freely under gravity and releases a ball from hand. As seen by the ball, the boy:

NUMS Mock 4
Physics
Gravitation

A negligible small current between input terminals of the operational amplifier is because of:

UHS 2019
Physics
Electronics
Elimination Tool:

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:

Unit of magnetic flux density is

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 2015
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

Radioactive elements emit:

NUMS 2017
Physics
Nuclear Physics
Elimination Tool:

The shortest wavelength photon emitted in Balmer series is:

NTS 2012
Physics
Atomic Spectra
Elimination Tool:

If T is to be reduced to T/3 then length of pendulum should be: a) L/9 b) In c) l./3 d) L/4

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:

Two bodies ‘X’ and ‘Y’ are attached to the ends of a string which passes over a pulley so that the two bodies hang vertically. If the mass of the body ‘X’ is 10 kg and that of ‘Y’ is 9.8 kg. Find the acceleration? (g = 9.8 m/s2)

NTS 2016 DUHS & JSMU
Physics
Forces and Motion
Elimination Tool:

Q²/C has the units of?

In hydrogen spectrum, Lyman and Balmer series belong to which region?

Instantaneous velocity is defined as

PMC Sample 3
Physics
Motion in Two Dimensions
Elimination Tool:

What is the flux density at a point 3 cm from the long straight wire, when there is a current of 25 A in a wire: (u0= 4? x10-7)

NTS 2010
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

Simple Harmonic Motion of a body is described by which statements mentioned below:

K : K.E is maximum when displacement x = 0

L : P.E is maximum when x = 0

M : P.E is maximum when x = ± x0

NUMS Mock 2
Physics
Oscillations and Simple Harmonic Motion

The net charge flowing through any section of the conductor per unit time is known as?

NTS 2015 SMBBMC
Physics
Electrostatics
Elimination Tool:

Js is the unit of:

Who was awarded Nobel Prize (1921) for explanation of Photoelectric Effect?

Equations of kinetics are valid only when the acceleration is:

NTS 2018
Physics
Forces and Motion
Elimination Tool:

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:

A mass of 20 kg is lifted from the floor to a height of 2m in 4.9 sec. Calculate the power in Watts.

NUMS 2019 Reconduct
Physics
Work, Power and Energy
Elimination Tool:

Electromagnetic waves are produced by:

NTS 2012
Physics
Electromagnetic Waves
Elimination Tool:

What will be the time period of pendulum if length becomes S times and g becomes 1/5 times at some height from the earth?

Infrasonic waves have a frequency of:

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

A car is traveling with uniform acceleration along a straight road. The road has marker posts every 100 m. When the car passes one post, it has a speed of 10 m/s and when it passes the next one, its speed is 20 m/s. What is the car’s acceleration?

NTS 2017
Physics
Motion in Two Dimensions
Elimination Tool:

Terminal voltage Vi of the battery is greater than emf of the battery when:

NUMS 2020
Physics
Current Electricity
Elimination Tool:

During the production of x-rays, the cathode and anode are enclosed inside an evacuated glass chamber and a high DC voltage of the order of:

NUMS 2020
Physics
Atomic Spectra
Elimination Tool:

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

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