Physics Practice Test 3

Entry test contains most of the Physics MCQs. FSC Part 2 Physics book MCQs. HSSC Physics questions MCQs. Solved Chapterwise Physics MCQs for first-year 12 class MCQs and 11 class MCQs. Second-year and first-year Physics textbooks chapter-wise MCQs with the answer are provided here. The physics portion is helpful in MDCAT , ECAT , NTS NAT , and NUST NET . PakLearningSpot PLS MCQs Bank website for FREE Entry test preparations

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NET Practice

Physics Practice Test 3

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Category: Physics Ch 15 Class 12

In microwave ovens ____ is used to heat the food

PMC Practice 33
Physics
Electromagnetic Waves
Elimination Tool:

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Category: Physics Ch 21 Class 12

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

NUMS 2019 Reconduct
Physics
Nuclear Physics
Elimination Tool:

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Category: Physics Ch 20 Class 12

The target in the X ray unit is given a:

NUMS 2018
Physics
Atomic Spectra
Elimination Tool:

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Category: Physics Ch 14 Class 12

Due to the magnetic force, a positively charged particle executes uniform circular motion within a uniform magnetic field ‘B’. If the charge is ‘q’ and radius of its path is r, which of the expressions gives the magnitude of the particle’s linear momentum:

NTS 2010
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

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Category: Physics Ch 2 Class 11

(1, 1, 1) • (2, 2, 2) =

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Category: Physics Ch 9 Class 11

In interference energy destroyed

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Category: Physics Ch 13 Class 12

If in a circuit, 2 Ampere current is drawn from the battery in 10 minutes. How much charge will flow through the circuit in this time?

NTS 2018
Physics
Current Electricity
Elimination Tool:

8 / 100

Category: Physics Ch 1 Class 11

The unit of velocity is:

PMC Sample 2
Physics
Measurements
Elimination Tool:

9 / 100

Category: Physics Ch 4 Class 11

What will be the speed a electron having an energy of 18.2 x10^14 Joule?

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Category: Physics Ch 13 Class 12

When a conductor of a cross-sectional area 5×10-6 m2 carries a current of 6 A, the drift velocity of the conduction electrons is 1.2-4 x 10-1 ms1-. What is the number density (number per unit volume) of the conduction electrons?

NTS 2010
Physics
Current Electricity
Elimination Tool:

11 / 100

Category: Physics Ch 20 Class 12

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

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Category: Physics Ch 7 Class 11

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:

13 / 100

Category: Physics Ch 10 Class 11

If a convex lens of focal length ‘f’ is cut into two identical halves along the lens diameter, the focal length
of each half is.

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Category: Physics Ch 7 Class 11

A spring is moving with SUM from X=10 cm to X=40 cm then it has maximum velocity at?

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Category: Physics

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

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Category: Physics Ch 5 Class 11

The torque will be greater if:

NTS 2011
Physics
Circular Motion and Momentum
Elimination Tool:

17 / 100

Category: Physics Ch 7 Class 11

A spring in SHM oscillates between -A and A with time period T. If the spring starts from mean position and moves towards A, at what time will it be at a distance of A/2 from the mean position?

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Category: Physics

Heavy nucleus of atoms go through fission so that they can:

NUMS Mock 4
Physics
Nuclear Physics

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Category: Physics Ch 16 Class 12

The frequency of applied AC is 2 kHz. Its time period will be:

PMC Practice 3
Physics
Alternating Current
Elimination Tool:

20 / 100

Category: Physics Ch 20 Class 12

The penetrating power of X rays increases with:

NUMS 2018
Physics
Atomic Spectra
Elimination Tool:

21 / 100

Category: Physics Ch 16 Class 12

The process of combining low frequency waves with high frequency is called:

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Category: Physics Ch 4 Class 11

When the speed of your car is halved, by what factor does its kinetic energy decreases?

PMC 2020
Physics
Work, Power and Energy
Elimination Tool:

23 / 100

Category: Physics Ch 3 Class 11

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

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Category: Physics Ch 12 Class 12

Unit of permittivity in free space is?

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Category: Physics Ch 19 Class 12

Which statement is universally correct?

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Category: Physics Ch 4 Class 11

Two identical bodies have a velocity ratio 2 : 3. What is the ratio of kinetic energies?

NUMS 2020
Physics
Work, Power and Energy
Elimination Tool:

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Category: Physics Ch 12 Class 12

When some charge is given to a soap bubble it

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Category: Physics

Q.97 Which statement is in correct?

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Category: Physics Ch 18 Class 12

The number of diodes in centre-tapped full-wave rectifier is:

PMC 2021 Tested
Physics
Electronics
Elimination Tool:

30 / 100

Category: Physics Ch 14 Class 12

The direction of the magnetic line of force depends upon:

NUMS 2016
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

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Category: Physics Ch 3 Class 11

A car is travelling in a straight line along a highway at a constant speed of 80miles per hour for 10 seconds. Find its acceleration.

NTS 2015 SMBBMC
Physics
Forces and Motion
Elimination Tool:

32 / 100

Category: Physics

A power line 8m high carries a current 100A. What is the magnetic field of wire at ground?

NUMS Mock 1
Physics
Magnetism and Electromagnetic Induction

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Category: Physics Ch 11 Class 11

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

NUMS 2016
Physics
Heat and Thermodynamics
Elimination Tool:

34 / 100

Category: Physics Ch 10 Class 11

Wave nature of light is proved by:

PMC Practice 1
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

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Category: Physics Ch 13 Class 12

The potential difference between the terminals of a battery in an open circuit is 2.2 V. When it is connected across a resistance of 5.0 Ω, the potential falls to 1.8 V. What is the internal resistance of the battery?

NTS 2015 DUHS and JSMU
Physics
Current Electricity
Elimination Tool:

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Category: Physics

Change in entropy does not depend on:

NUMS Mock 3
Physics
Heat and Thermodynamics

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Category: Physics Ch 16 Class 12

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:

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Category: Physics

Q.88 In case of spectrometer circular scale, graduated in half degree, is attached with

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Category: Physics Ch 11 Class 11

The internal energy of a system during an isothermal process:

PMC 2020
Physics
Heat and Thermodynamics
Elimination Tool:

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Category: Physics Ch 14 Class 12

An electron enters in a magnetic field at an angle less than 90 degrees with magnetic field. Which of the following path is followed by an electron?

NUMS 2014
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

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Category: Physics Ch 2 Class 11

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

NTS 2014
Physics
Scalars and Vectors
Elimination Tool:

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Category: Physics Ch 12 Class 12

Electric potential is a quantity.

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Category: Physics Ch 19 Class 12

The uncertainty in momentum and position is due to its:

PMC Sample 1
Physics
Dawn of Modern Physics
Elimination Tool:

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Category: Physics Ch 13 Class 12

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

NTS 2016 SMBBMC
Physics
Current Electricity
Elimination Tool:

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Category: Physics Ch 8 Class 11

Energy of sound waves is proportional to:

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Category: Physics Ch 4 Class 11

A ball is thrown vertically upward with a velocity of 98 m/s. If it takes 10 seconds to reach the highest point then the acceleration of the ball is:

NUMS 2014
Physics
Motion in Two Dimensions
Elimination Tool:

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Category: Physics Ch 4 Class 11

Which of the following is a unit of Work?

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Category: Physics Ch 14 Class 12

Transformer works on the principle of:

NTS 2016 SMBBMC
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

49 / 100

Category: Physics

Q.147  Force is measured according to which law of motion

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Category: Physics Ch 20 Class 12

________ 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:

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Category: Physics

Q.86 The activity of a radioactive isotope decreases from 8000 to 10000 in 60 days. The half life of isotope will be

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Category: Physics Ch 12 Class 12

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

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Category: Physics Ch 5 Class 11

On doubling the mass, the linear momentum and angular momentum of the body will be:

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Category: Physics Ch 7 Class 11

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

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Category: Physics Ch 20 Class 12

The down quark has charge ________.

PMC Practice 5
Physics
Atomic Spectra
Elimination Tool:

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Category: Physics Ch 3 Class 11

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:

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Category: Physics Ch 16 Class 12

Mutual inductance has a practical role in performance of:

PMC Practice 4
Physics
Alternating Current
Elimination Tool:

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Category: Physics Ch 16 Class 12

Voltage Is current In RC circuit.

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Category: Physics Ch 21 Class 12

Muon has charge of?

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Category: Physics Ch 7 Class 11

On increasing the spring constant to 4 times its value:

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Category: Physics Ch 16 Class 12

In a practical transformer mutual induction between primary and secondary coils takes place. In such transformer what can be deduced about the power.

UHS 2018
Physics
Alternating Current
Work, Power & Energy
Elimination Tool:

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Category: Physics

Q.113 A stationary wave is setup on a string of length 10 cm. Four loops are formed. what is the distance between two consecutive crests?

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Category: Physics Ch 16 Class 12

Electromagnetic waves are produced due to flow of

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Category: Physics Ch 1 Class 11

Which of the following is dimensionless quantity?

NUMS 2018
Physics
Measurements
Elimination Tool:

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Category: Physics Ch 12 Class 12

A sphere of charge +Q is fixed in a position. A smaller sphere of +q is placed near the larger sphere and released from the rest. The small sphere will move away from the large sphere with?

NTS 2014
Physics
Electrostatics
Elimination Tool:

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Category: Physics

Q.145 Current that fluctuates periodically with time is

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Category: Physics Ch 20 Class 12

In hydrogen spectrum If nj = 6, then the spectral lines lie In:

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Category: Physics Ch 2 Class 11

Which of the following option(s) represent a vector quantity?

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Category: Physics Ch 19 Class 12

Black body emits which of the following radiations:

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Category: Physics Ch 20 Class 12

X Ray ______ causes damage to living tissues. As X rays are absorbed in tissues, they break molecular bonds and create reactive free radicals (such as H and OH).

NUMS 2017
Physics
Atomic Spectra
Elimination Tool:

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Category: Physics Ch 2 Class 11

The displacement has __________.

PMC Practice 2
Physics
Scalars and Vectors
Elimination Tool:

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Category: Physics Ch 6 Class 11

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 2015
Physics
Fluid Dynamics
Elimination Tool:

73 / 100

Category: Physics

Q.147 Why x-rays are used in crystallography

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Category: Physics Ch 16 Class 12

In a pure resistive circuit current and voltage are

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Category: Physics Ch 18 Class 12

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

UHS 2019
Physics
Electronics
Elimination Tool:

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Category: Physics Ch 12 Class 12

Two conducting objects X and Y having a charge Q on them exert force F on each other. Now third conductor having a charge -Q is touched to X and is removed, the new force between X and Y will be:

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Category: Physics

Q.142 Three charges +3q+q and Q are placed on a straight line with equal separation. In order to make the net force on q to be zero, the value or Q will be

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Category: Physics Ch 16 Class 12

that the supply for the potentiometer is taken?

PMC Practice 8
Physics
Alternating Current
Elimination Tool:

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Category: Physics Ch 17 Class 12

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:

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Category: Physics Ch 12 Class 12

If a 2 µF capacitor is connected, by closing a switch, to a supply of 100 volts through  1M ohm  series resistance. What will be the time constant?

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Category: Physics Ch 5 Class 11

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

NUMS 2020
Physics
Gravitation
Elimination Tool:

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Category: Physics Ch 14 Class 12

Two point charges of +5 C and -12 C attract each other with a force of 1.48 N. charge of -5 C is added to each of these charges. Now the force will be:

NUMS 2015
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

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Category: Physics Ch 12 Class 12

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

PMC Sample 2
Physics
Electrostatics
Elimination Tool:

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Category: Physics Ch 7 Class 11

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:

85 / 100

Category: Physics

Q.73 An electrical instrument which is used to measure potential difference between two points is called

86 / 100

Category: Physics Ch 19 Class 12

In E = aT4  E stands for??

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Category: Physics Ch 11 Class 11

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:

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Category: Physics Ch 3 Class 11

In an inelastic collision, Momentum is _____ and Kinetic Energy is ______ respectively.

NUMS 2019 Reconduct
Physics
Forces and Motion
Elimination Tool:

89 / 100

Category: Physics

Q.109 Identify the factor on which mutual ínductance does not depend.

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Category: Physics Ch 15 Class 12

Which one of the following requires no medium?

PMC 2021 Tested
Physics
Electromagnetic Waves
Elimination Tool:

91 / 100

Category: Physics Ch 13 Class 12

If we increase the cross-section area of a conductor having a length L, the resistance R of that conductor will be:

NTS 2018
Physics
Current Electricity
Elimination Tool:

92 / 100

Category: Physics Ch 10 Class 11

The objective of a microscope is a lens of

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Category: Physics

Q.110 What force provides the centripetal force to planets moving around the sun?

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Category: Physics Ch 14 Class 12

A 3-cm length of wire is moved at right angles across a uniform magnetic field with a speed of 2.0 m/s . If the flux density is 5.0 teslas, what is the magnitude of the induced e.m.f?

NUMS 2015
Physics
Magnetism and Electromagnetic Induction
Elimination Tool:

95 / 100

Category: Physics Ch 15 Class 12

Which of the following is not major application of electromagnetic induction

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Category: Physics

A wheel starts rotating from result with angular acceleration of 2 rads-2 till its angular speed becomes 6 rad/s. The angular displacement of the wheel will be equal to:

NUMS Mock 3
Physics
Circular Motion and Momentum

97 / 100

Category: Physics Ch 4 Class 11

A car starts from rest and moves with constant acceleration. During the 4th second of its motion, it covers a distance of 21 meters. The acceleration of the car is _____ m.

NTS 2019
Physics
Motion in Two Dimensions
Elimination Tool:

98 / 100

Category: Physics

Q.143  A 5 watt LED bulb converts 80% of the power into light photos of wavelength 660 nm. What is the number of photons emitted from the bulb in one seco+G124nd?

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Category: Physics Ch 1 Class 11

Volume of sphere having radius 17 cm Is:

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Category: Physics Ch 12 Class 12

Which of the following can’t be used as a dielectric in a capacitor