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:

An immersion heater of 400 watts kept on for 5 hours will consume electrical power of __________________?

A. 2KWh
B. 6KWh
C. 20KWh
D. 12KWh

Resistance of an ideal insulator is __________________?

A. infinite
B. finite
C. zero
D. depends upon nature

Reciprocal of resistivity is called__________________?

A. inductance
B. resistance
C. conductivity
D. flexibility

Circuit which gives continuously varying potential is called _______________________?

A. wheat stone bridge
B. complex network
C. potential divider
D. all of above

There are three bulbs of 60W 100W and 200W which bulb has thickest filament ?

A. 60W
B. 200W
C. 100W
D. all

Specific resistance of a wire____________________?

A. will depend on its radius
B. will depend on its length
C. will depend on the type of material of the wire
D. will depend on none of the above

In the following figure, the terminal potential is ___________________ ?

A. zero
B. 12V
C. 2V
D. 36V

Which one of the following materials is useful for making bulb filaments ?

A. nichrome
B. constantan
C. copper
D. tungsten

If 1 ampere current flows through 2m long conductor the charge flow through it in 1 hour will be_______________?

A. 3600C
B. 1C
C. 7200C
D. 2C

Why should a resistance be introduced in a circuit in series deliberately ?

A. to control current
B. to decrease current
C. to increase current
D. just to give a good look to circuit

All electrical appliances are connected in parallel to each other between the main line and neutral wire to get ______________________?

A. same current and potential difference
B. same current
C. different current but same potential difference
D. different current and potential differences

Resistance of a conductor depends upon_________________?

A. dimension of conductor
B. nature of conductor
C. physical state of the conductor
D. all of above

A wire of uniform area of cross-section A length L and resistance R is cut into two parts. Resistivity of each part _________________?

A. remains the same
B. is halved
C. is doubled
D. becomes zero

When same current passes for same time through a thick and thin wire_________________?

A. no heat is produced in wire
B. more heat is produced in thin wire
C. more heat is produced in thick wire
D. less heat is produced in thick wire

One kilowatt hour is the amount of energy delivered during _______________?

A. one day
B. one second
C. one minute
D. one hour

How much heat does a 40 W bulb generates in one hour ?

A. 144000J
B. 1.44J
C. 144J
D. 14J

Resistance of a super conductor is ______________________?

A. infinite
B. finite
C. zero
D. changes with every conductor

Which one is the best material for making connecting wires ?

A. tungsten
B. iron
C. silver
D. copper

Internal resistance is the resistance offered by________________?

A. source of EMF
B. resistor
C. conductor
D. capacitor

Three bulbs are rating 40W 60W and 100W designed to work on 220V mains. Which bulb will burn most brightly if they are connected in series across 220 V mains ?

A. 40 W bulb
B. 100 W bulb
C. 60 W bulb
D. all will burn equally brightly

Resistance of a wire on increasing its temperature will_________________?

A. increase with rise in temperature
B. will remain same
C. decrease with rise in temperature
D. depends upon altitude of experimentation

An electric iron is marked 20 volts 500W. The units consumed by it in using if for 24 hours will be______________?

A. 12
B. 5
C. 24
D. 1100

In liquids and gases the current is due to the motion________________?

A. positive charges
B. negative charges
C. both negative and positive charges
D. neutral particles

The graphical representation of Ohms law is___________________?

A. ellipse
B. hyperbola
C. parabola
D. straight line

The resistance of a conductor at absolute zero (OK) is________________?

A. zero almost
B. no prediction at all
C. infinite almost
D. may increase or decrease

Electrical energy is measured in___________________?

A. horse power
B. watt
C. kilo watt
D. kilowatt hour

Electrical energy is converted to heat at the rate of___________________?

A. I2Rt
B. I2R
C. IRt
D. VIt

A fuse is placed in series with the circuit to protect against__________________?

A. high voltage
B. high power
C. high current
D. over heating

Which one of the following bulbs has the least resistance ?

A. 200 watt
B. 100 watt
C. 300 watt
D. 60 watt

Optical active crystals rotates the __________________?

A. diffraction plane
B. polarization plane
C. vibrating plane
D. interference plane

In double slit experiment we observe _____________________?

A. diffraction fringes only
B. interference fringes only
C. both interference and diffraction fringes
D. polirized frringes

Which one of the following properties of light does not change with the nature of the medium ?

A. wavelength
B. velocity
C. amplitude
D. frequency

Photoelectric effect was given by ____________________?

A. Fresnel
B. Hertz
C. Einstein
D. Plank

Longitudinal waves do not exhibit _____________________?

A. refraction
B. reflection
C. diffraction
D. polarization

A point source of light placed in a homogeneous medium gives rise to ___________________?

A. an elliptical wave front
B. a cylindrical wave front
C. a spherical wave front
D. a plane wave front

Which one of the following is nearly monochromatic light ?

A. light form neon lamp
B. light form fluorescent tube
C. light form sodium lamp
D. light form simple lamp

When crest of one wave falls over the trough of the other wave this phenomenon is known as________________?

A. constructive interference
B. polarization
C. destructive interference
D. diffraction

In Young double slit experiment, if white light is used____________________?

A. no interference fringes will be seen
B. coloured fringes will be seen
C. alternate dark and bright fringes will be seen
D. impossible to predict

In an interference pattern______________________?

A. dark fringes are wider than bright fringe
B. bright fringes are wider than dark fringes
C. both dark and bright fringes are of equal width
D. central fringes are brighter than the outer fringes

The blue colour of the sky is due to___________________?

A. reflection
B. diffraction
C. polarization
D. scattering

When one mirror of a Michelson Interferometer is moved a distance of 0.5 mm we observe 2000 fringes. What will be wavelength of light used ?

A. 500m
B. 5000A
C. 5000 nm
D. 2000um

Wavelength of X-rays falling at glancing angle of 30? on a crystal with atmic spacing 2 x 10-10 for the fist order diffraction is________________?

A. 0.02×10-10m
B. 2 x 10-10 m
C. 4 x 10-10 m
D. 20×10-10m

In a plane polarized light _________________?

A. vibration in two mutually perpendicular directions
B. vibration in all direction
C. vibration take place in a direction perpendicular to the direction of propagation of light
D. no vibration at all

Physics Mcqs

Which one of the following cannot be polarized ?

A. ultraviolot rays
B. radio waves
C. X-rays
D. sound waves

In monochromatic red light a blue book will probably appear to be_________________?

A. black
B. green
C. purple
D. no scientific reasoning available

In double slit experiment if one of the two slit is covered then________________?

A. no interference fringes are observed
B. no fringes observed
C. no diffraction fringes are observed
D. interference pattern not disturbed

In the shadow of a ball the central portion appears bright that happens due to_________________?

A. Polarization
B. Diffraction
C. Interference
D. Refraction

Crystals of a material can behave as_________________?

A. Interferometer
B. Convex lens
C. Diffraction grating
D. Concave

Which is not optically active ?

A. tartaric acid
B. sugar
C. water
D. sodium chlorate

When light incident normally on thin film the path difference depends upon ________________?

A. nature of the film only
B. thickness of the film only
C. angle of indidence only
D. all thickness nature and angle of incidence

Light reaches the earth form sun in nearly____________________?

A. 10 minutes
B. 15 minutes
C. 8 minutes
D. 8 minutes 30 seconds

According to Einstein light travels form one place to another in the form of ________________?

A. particles
B. waves
C. photons
D. it was not his discovery

Central spot of Newtons rings __________________?

A. bright
B. dark
C. dark for large wavelength
D. bright for large wavelength

The locus of all points in a medium having the same phase of vibration is called____________________?

A. trough
B. crest
C. wavelength
D. wave front

Two sources of light are coherent if they emit rays of_______________?

A. same amplitude of vibration
B. same wavelength
C. same wave length with constant phase difference
D. same amplitude and wavelength

The velocity of light was determined accurately by_______________?

A. Huygen
B. Michelson
C. Newton
D. Young

appearance of colour in thin films is due to ____________________?

A. dispersion
B. diffraction
C. interference
D. polarization

A light ray traveling form rarer to denser medium suffers a phase change of__________________?

A. 90°
B. 60°
C. 180°
D. 45°

Diffraction effect is____________________?

A. less for a round edge
B. more for a round edge
C. more for a sharp edge
D. less for a sharp edge

A diffraction grating has 500 lines per mm. Its slit spacing or grating element will be equal to ____________________?

A. 5 x 10-3 mm
B. 500 mm
C. 2 x 10-5 mm
D. 2 x 10-3 mm

Light on passing through a Polaroid is ___________________?

A. plane polarized
B. circularly polarized
C. un-polarized
D. elliptically polarized

Diffraction fringes are____________________?

A. distance between them increases
B. equally spaced
C. distance between then decreases
D. they are adjacent with no space in between

A thing that emits its own light is___________________?

A. luminous
B. incandescent
C. non-luminous
D. bright

Gives the definition of metre in terms of wavelength of red cadmium light ___________________?

A. Einstein
B. Newton
C. Michelson
D. Galileo

Which experiment shows that wavelength of light is smaller than that of sound___________________?

A. Diffraction
B. Interference
C. Polarization
D. Reflection

When a force is parallel to the direction of motion of the body, then work done on the body is_____________________?

A. minimum
B. zero
C. infinity
D. maximum

If a body a mass of 2 kg is raised vertically through 2m, then the work done will be _________________?

A. 392.1 J
B. 38.2 J
C. 39.2 J
D. 3.92 J

The average power and instantaneous power become equal if work is done at __________________?

A. at variable rate
B. any rate
C. at uniform rate
D. at high rate

Proton electron neutron and a particles have same momentum. Which of them have highest K.E ?

A. neutron
B. electron
C. Proton
D. a-particle

Work done by variable force is determine by dividing____________________?

A. both force and displacement into small intervals
B. displacement into small interval
C. force into small interval
D. force into small and displacement into large intervals

The escape velocity of a body in gravitational field of earth is independent of__________________?

A. the angle at which it is thrown
B. its mass
C. both its mass and the angle at which it is thrown
D. gravitational field of earth

The source of geothermal energy is___________________?

A. compression of material in the earth
B. decay of radioactive element in the earth
C. residual lost of the earth
D. all as said in A – B and C

Work done by the force of friction is____________________?

A. positive only for small frictional force
B. always negative
C. always positive
D. positive only for large frictional force

If velocity is doubled then__________________?

A. momentum and K.E. remain same
B. momentum increases 4 times and K.E increases 2 times
C. momentum increases 2 times and K.E increases constant
D. momentum increases 2 times and K.E increases 4 time

Which of the following is not conservative force_________________?

A. friction
B. gravitational
C. electric
D. magnetic

The consumption of energy by a 60 watt bulb in 2 sec is_________________?

A. 120 J
B. 30 J
C. 60 J
D. 0.02 J

The escape velocity form the earth surface in km S-1 is____________________?

A. 7.5 km S-1
B. 4.2 km S-1
C. 9.5 km S-1
D. 1.1 km S-1

If moon radius is 1600 km and g on its surface is 1.6 ms-2 then the escape velocity on the moon is ___________________?

A. 71.6 ms-1
B. 50.6 ms-1
C. 1600 ms-1
D. 2263ms-1

When arrow is released form its bow, its energy is transformed from _____________________?

A. K.E to elastic P.E.
B. elastic P.E to K.E
C. elemical energy to elastic P.E
D. heat energy to K.E

The work done by friction is__________________?

A. zero
B. negative
C. positive
D. none of these

The dimension of power is_______________?

A. [ML2T-3]
B. [ML2T3]
C. [ML2T-2]
D. none of these

The dot product of force and velocity is__________________?

A. power
B. impulse
C. work
D. torque

The source of tidal energy is____________________?

A. earth
B. sun
C. both A and B
D. moon

On a clear day at noon the solar energy reaching the earth is ____________________?

A. 1.4kw/m2
B. 1.44kw/m2
C. 1 kw/m2
D. none

Work done will be maximum if the angle between the force F and displacement d is______________________?

A. 90°
B. 45°
C. 180°
D. 0°

A field in which the work done in a moving a body along closed path is zero is called________________?

A. electromagnetic field
B. conservative field
C. electric field
D. gravitational field

Which of the following types of force can do no work on the particle on which it acts ?

A. gravitational force
B. frictional force
C. elastic force
D. centripetal force

An elevator weighing 3.5 x 10-6 N is raised to a height of 1000 m in the absence of friction, the work done is_________________?

A. 3.5 x 104 J
B. 3.5 x 103 J
C. 3.5 x 106 J
D. 3.5 x 109 J

The relation between horse power and watt is_________________?

A. 1 hp = 1000 watts
B. 1 hp = 746 watts
C. 1 hp = 546 watts
D. 1 hp = 946 watts

Slope of work time graph is equal to____________________?

A. acceleration
B. displacement
C. power
D. energy

Work done on the body equals to the _____________________?

A. change in its P.E always
B. change in its K.E always
C. change in its K.E and change in its P.E
D. neither change in K.E and nor change in its P.E

The tides raise the mater in the see roughly in a day___________________?

A. four time
B. twice
C. once
D. eight time

The highest value of escape velocity in solar system is planet____________________?

A. Neptune
B. Earth
C. Jupiter
D. Moon

Gravitational P.E of a body has____________________?

A. a formula
B. a formula mgh only
C. no formula
D. no general formula

When the speed of a moving body is doubled then___________________?

A. its P.E is doubled
B. its acceleration is doubled
C. its K.E is doubled
D. its momentum is doubled

One mega watt hour is equal to_________________?

A. 36 x 1012 J
B. 36 x 106 J
C. 36 x 109 J
D. 36 x 108 J

Work has the dimension as that of same as that of__________________?

A. torque
B. linear momentum
C. angular momentum
D. power

The relation between the escape velocity V esc and orbital speed Vo is given by________________?

A. V esc = Vo
B. V esc = -2 Vo
C. V esc = 1/2Vo
D. V esc = 2Vo

When two protons are brought together_____________________?

A. P.E. between them decreases
B. P.E. between them increases
C. Kinetic energy increases
D. P.E. between them does not change

A man lifts vertically a weight of 40kg through 1m in 10s; while a chile lifts vertically a weight of 10kg through a distance of 1m in 1s. What will be correct inference ?

A. it is a foolish question
B. child does more work than man
C. both do the same amount of work
D. man does more work than child

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

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