Physics Mcqs – (Science) MCQs Latest For FPSC, PPSC, NTS, KPPSC, SPSC & Other Tests

Physics Mcqs – (Science) MCQs Latest For FPSC, PPSC, NTS, KPPSC, SPSC & Other Tests

Physics Mcqs - (Science) MCQs Latest For FPSC, PPSC, NTS, KPPSC, SPSC & Other Tests
Physics Mcqs

Physics Mcqs “. Tab this page to check “Latest Physics MCQs” for the preparation of competitive mcqs, FPSC mcqs, PPSC mcqs, SPSC mcqs, KPPSC mcqs, AJKPSC mcqs, BPSC mcqs, NTS mcqs, PTS mcqs, OTS mcqs, Atomic Energy mcqs, Pak Army mcqs, Pak Navy mcqs, CTS mcqs, ETEA mcqs and others. The most occurred mcqs of Physics in past papers. Past papers of Physics mcqs. Past papers of Physics MCQs. Physics Mcqs are the necessary part of any competitive / job related exams. The Physics mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Physics mcqs. The Important series of Physics Mcqs are given below:

Forward current through a semi conductor diode circuit is due to____________?

A. minority carriers
B. majority carriers
C. electron
D. holes

Which one of the following is not a donor impurity ?

A. phosphorus
B. antimony
C. aluminium
D. arsenic

In the transistor schematic symbol, the arrow______________?

A. is located on the emitter
B. is locate on the collector
C. is located on the base
D. points form north to south

In full wave rectification the output D.C. voltage across the load is obtained for_____________?

A. The negative half cycle of input A.C.
B. The positive half cycle of input A.C.
C. The complete cycle of input A.C.
D. All of the above.

In half-wave rectification the output D.C. voltages is obtained across the load for_______________?

A. The positive and negative half cycles
B. The positive half cycle of A.C.
C. The negative half cycle of A.C.
D. Either positive or negative half of A.C.

The device used for conversion of D.C. to A.C. is called______________?

A. A rectifier
B. Converter
C. Inverter
D. Oscillator

The specially designed semi-conductor diodes used as fast counters in electronic circuits are______________?

A. Photo voltaic cell
B. Photo diodes
C. The light emitting diodes
D. Solar cells.

The alternating voltage is an example of_______________?

A. Discrete waveform
B. An analogue waveform
C. A digital waveform
D. None at all

The operational amplifier is______________?

A. A high gain amplifier
B. A high resistance amplifier
C. A high-power amplifier
D. A low resistance amplifier

To obtain an n-type semiconductor germanium crystal it must be doped with foreign atoms whose valency is_____________?

A. 3
B. 2
C. 4
D. 5

The operation of a transistor requires______________?

A. That the base be heated
B. That the emitter be heated
C. That the collector be heated
D. None of the above

Non-inverting amplifier circuits have____________?

A. A very high input impedance
B. A low output impedance
C. A very low input impedance
D. None of the above

An OP-AMP comparator is a circuit that compares the signal voltage on one of its inputs with a ______________?

A. Non-inverting voltage at output
B. Reference voltage on the other
C. Output
D. Virtual input

The working of transistor as amplifier is similar to________________?

A. Step down transformer
B. Step up transformer
C. Three diodes in common
D. Triode vacuum tube

To obtain a p-type semi-conductor Si Crystal must be doped with foreign atoms whose valency is_____________?

A. 4
B. 3
C. 2
D. 5

In a half-wave rectifier the r.m.s. value of the A.C. component of the wave is________________?

A. Less than D.C. value
B. More than D.C. value
C. Equal to D.C. value
D. Zero

In forward bias the width of potential barrier_____________?

A. Remains same
B. Decreases
C. Increases
D. No effect

The electronic circuits which implement the various logic operations are called_____________?

A. Logic gates
B. Amplifier gain
C. Boolean algebra
D. Logic functions

Acceptor and donor impurities donate______________?

A. p-carriers only
B. n-carriers only
C. p-carriers and n-carriers respectively
D. n-carriers and p-carriers respectively

An OP-AMPs can amplify_______________?

A. A.C.
B. D.C.
C. Both A.C. & D.C.
D. None of the above

The rectangular voltage is an example of____________________?

A. Continuous wave form
B. An analogue waveform
C. Electronic waveform
D. A digital waveform

The specially designed semi-conductor diodes used as fast counters in electronic circuits are_______________?

A. Photo voltaic cell
B. Photo diodes
C. The light emitting diodes
D. Solar cells.

Dimension of pressure is__________________?

A. ML-1T-1
B. MLT
C. ML-1T-2
D. ML-2T-2

Temperature is a property which determines_________________?

A. Whether a body will feel hot or cold to touch
B. How much heat a body contains
C. In which direction heat will flow between two systems
D. How much total absolute energy a body has

The scales of temperature are based on two fixed points which are_________________?

A. The temperatures of water at 0? 100?C
B. The temperature of melting ice and boiling water at atmospheric pressure
C. The temperatures of frozen and boiling mercury
D. The temperatures of ice cold and boiling water

At constant temperature the graph between V and 1/P is_____________?

A. Parabola
B. Hyperbola
C. A curve of any shape
D. A straight lime

We can produce heat by________________?

A. Chemical processes
B. Frictional process
C. Electrical processes
D. All of the above

Physics Mcqs

Metabolism is the name of a process in which energy transformation takes place within______________?

A. Atmosphere
B. Human body
C. Heat engine
D. Laboratory

The pressure exerted by a column of mercury 76cm high and at 0°C is called_______________?

A. 1 atmosphere
B. 1 Pascal
C. 1 Newton per square meter
D. data is insufficient

If the pressure of a given gas is held constant its density is inversely proportional to its absolute temperature. We can refer it as another statement of______________?

A. Ideal gas law
B. Charles law
C. Boyles law
D. Avagadros law

Gas molecules of different masses in the same container have the same average transnational kinetic energy which is directly proportional to their_____________?

A. pressure
B. volume
C. absolute temperature
D. time

Boyles law helds for ideal gases in________________?

A. isobaric processes
B. isochoric processes
C. isothermal processes
D. adiabatic processes

If the volume of a gas is held constant and we increase its temperature then_______________?

A. its pressure falls
B. its pressure rises
C. its pressure is constant
D. any of above

Which one is not an example of adiabatic process ?

A. rapid expansion of air
B. rapid escape of air from a burst tyre
C. conversion of water into ice in refrigerator
D. cloud formation in the atmosphere

In a clinical thermometer the mercury in the capillary tube does not contract once removed from the patient because_______________?

A. The amount of mercury use is very small
B. Mercury takes a long time to contract
C. The capillary tube has a small constriction near the bulb
D. The capillary tube is very narrow

We prefer mercury as a thermometric substance because______________?

A. Over a wide range of temperature its expansion is uniform
B. It opaque to light
C. It does not stick to thermometer glass
D. All of above

Numerical value of Boltzmanns constant is______________?

A. 3.18×10-31JK-1
B. 1.38×10-31JK-1
C. 3.18×10-23JK-1
D. 1.38×10-23JK-1

Normal human body temperature 98.6°F corresponds to______________?

A. 37°C
B. 55°C
C. 42°C
D. 410°C

The Fahrenheit and centigrade scales agree to________________?

A. 40
B. 542
C. 15.5
D. 273

The size of one degree of Celsius is equal to_________________?

A. 3.2 degrees of Fahrenheit scale
B. 1.8 degrees of Fahrenheit scale
C. One degree of Fahrenheit scale
D. 2.12 degrees of Fahrenheit scale

According to Pascals law the pressure of gas in a vessel is_____________?

A. Same only along opposite directions
B. Same in all direction
C. Different in different direction
D. Same only along normal directions

Which one is true for internal energy ?

A. It is sum of all forms of energies associated with molecules of a system
B. It is proportional to transnational K.E of the molecules
C. It is a state function of a system
D. All are correct

Standard condition STP refer to a gas at ___________________?

A. 760mm 273K
B. 76cm 0°C
C. 1atm 273K
D. all of the above

At what temperature is the Fahrenheit scale reading equal to twice that of the Celsius scale?

A. 280°C
B. 460°C
C. 360°C
D. 160°C

The area enclosed by the curve ABCDA for a Carnot heat engine represents the work done by Carnot engine_______________?

A. averagely
B. at any instant
C. during its operation
D. during one cycle

For a gas obeying Boyles law if the pressure is doubled the volume becomes________________?

A. four times
B. one half
C. double
D. one fourth

Triple point of water is_____________________?

A. 273K at 61.6 Kpa
B. 273°C at 6.11 Kpa
C. 273.16°C at 0.611 Kpa
D. 273.16K at 750 Kpa

Which of the following properties of molecules of a gas is same for all gases at particular temperature ?

A. momentum
B. velocity
C. mass
D. kinetic energy

Physics Mcqs

Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________?

A. K = Na/Ra
B. K = R/Na
C. K = RNa
D. K = nRNa

Average translational kinetic energy per molecule of an ideal gas is given by_____________?

A. 2NaT/3
B. 3NaT/2R
C. 3RT/2Na
D. 3Na/2RT

In which process entropy remains constant________________?

A. isochoric
B. isobaric
C. adiabatic
D. isothermal

Adiabatic process is also called______________?

A. Heating process
B. Heat exchange process
C. Isentropic process
D. All of the above

The work done in the isochoric process is________________?

A. variable
B. constant
C. zero
D. depends on situation

For the successful operation of Heat engine which condition should be met ?

A. operated at certain temperature difference
B. cyclic process
C. both A and B
D. none of these

The purpose of flywheel in the engines is________________?

A. to smooth out the energy variation
B. to start engine
C. to add more weight to engine to work it stable
D. both A and B

Petrol engine is a________________?

A. SI engine
B. C.I engine
C. IC engine
D. all the above

Which quantity is a state function_______________?

A. internal energy
B. pressure
C. heat supply
D. volume

The unit of entropy is________________?

A. J.K
B. N.m/sec
C. J/K
D. Kgm2/sec2.K

The performance of a refrigerator is described by________________?

A. coefficient of performance
B. efficiency
C. both A and B
D. not described

In which process all the heat supplied is converted into work done ?

A. isothermal
B. isobaric
C. isochoric
D. isentropic

The value of γ for diatomic gas is_______________?

A. γ = 1.3
B. 1.4
C. 1.67
D. None

A stone is thrown upward from the top of a 59.4m high cliff with an upward velocity component of 19.6m/s how long is the stone in the air?

A. 5.00 s
B. 4.00 s
C. 6.00 s
D. 7.00 s

The average acceleration caused by gravity per second is____________?

A. 52 feet
B. 32 feet
C. 22 feet
D. 42 feet

Which of the following branch of Physics deals with the internal structure of earth?

A. Plasma physics
B. Geophysics
C. Biophysics
D. Atomic physics

Physics Mcqs

Name the SI unit having the symbol cd?

A. Candela
B. Ampere
C. Cm
D. Second

The symbol of the prefix used for Mega is_______?

A. h
B. G
C. M
D. E

Which of the following is not derived quantity________?

A. Time
B. Volume
C. Density
D. Area

The least count of Vernier caliper is ________ containing 10 Vernier scale divisions?

A. 0.01mm
B. 0.001mm
C. 0.1mm
D. 0.0001mm

Which one of the following is not vector quantity _______?

A. Displacement
B. Acceleration
C. Speed
D. Force

Who were the pioneers of Physics?

A. Latin
B. Greek
C. Egyptians
D. Persians

Which of the following waves have smallest velocity in vacuum?

A. Infra-Red
B. Sound
C. Ultraviolet
D. Micro

The turning effect of force is called_________?

A. Moment
B. Torque
C. Momentum
D. None of these

The most suitable unit for expressing nuclear radius is_______?

A. Micro
B. Angstrom
C. Nano meter
D. Fermi

Which one of the following is not a radioactive element ?

A. Cadmium
B. Radium
C. Thorium
D. Uranium

Oil rises up to wick in a lamp because_____________?

A. Oil is volatile
B. Oil is very light
C. Diffusion of oil through the wick
D. Capillary action phenomenon

Newton’s Third Law of Motion?

A. every action there is an equal and opposite reaction.
B. volume of a given mass of gas increases or decreases
C. attraction or repulsion between two charges
D. temperature remaining constant, volume of a given mass of a gas varies inversely

Medium which sends signal from source to destination is known as ________ ?

A. Receiver
B. Transmission channel
C. Transmitter
D. Hardware

Joule Thomson effect is based upon __________ ?

A. Cooling of gases
B. Sudden expansion of gases
C. Sudden compression of gases
D. Heating of gases

Rutherford in his atomic model could not explain behavior of ___________ ?

A. Electrons
B. Neutrons
C. Protons
D. Neutrino

Physics Mcqs – (Science) MCQs Latest For FPSC, PPSC, NTS, KPPSC, SPSC & Other Tests

Leave a Reply

error:
%d bloggers like this: