Physics MCQs

Option A: 144000J

Option B: 144J

Option C: 1.44J

Option D: 14J

Correct Answer: 144000J ✔

Option A: one second

Option B: one day

Option C: one minute

Option D: one hour

Correct Answer: one hour ✔

Option A: more heat is produced in thick wire

Option B: more heat is produced in thin wire

Option C: no heat is produced in wire

Option D: less heat is produced in thick wire

Correct Answer: more heat is produced in thin wire ✔

Option A: remains the same

Option B: is doubled

Option C: is halved

Option D: becomes zero

Correct Answer: remains the same ✔

Option A: nature of conductor

Option B: dimension of conductor

Option C: physical state of the conductor

Option D: all of above

Correct Answer: all of above ✔

Option A: same current

Option B: same current and potential difference

Option C: different current but same potential difference

Option D: different current and potential differences

Correct Answer: different current but same potential difference ✔

Option A: to increase current

Option B: to decrease current

Option C: to control current

Option D: just to give a good look to circuit

Correct Answer: to decrease current ✔

Option A: 3600C

Option B: 7200C

Option C: 1C

Option D: 2C

Correct Answer: 3600C ✔

Option A: constantan

Option B: nichrome

Option C: copper

Option D: tungsten

Correct Answer: tungsten ✔

Option A: zero

Option B: 2V

Option C: 12V

Option D: 36V

Correct Answer: zero ✔

Option A: will depend on its length

Option B: will depend on its radius

Option C: will depend on the type of material of the wire

Option D: will depend on none of the above

Correct Answer: will depend on the type of material of the wire ✔

Option A: 100W

Option B: 200W

Option C: 60W

Option D: all

Correct Answer: 200W ✔

Option A: complex network

Option B: wheat stone bridge

Option C: potential divider

Option D: all of above

Correct Answer: potential divider ✔

Option A: resistance

Option B: inductance

Option C: conductivity

Option D: flexibility

Correct Answer: conductivity ✔

Option A: infinite

Option B: zero

Option C: finite

Option D: depends upon nature

Correct Answer: infinite ✔

Option A: 2KWh

Option B: 20KWh

Option C: 6KWh

Option D: 12KWh

Correct Answer: 2KWh ✔

Option A: heat energy into electrical energy

Option B: heat energy into light energy

Option C: heat energy into mechanical energy

Option D: mechanical energy into heat energy

Correct Answer: heat energy into electrical energy ✔

Option A: 40 W

Option B: 90W

Option C: 100W

Option D: 120W

Correct Answer: 90W ✔

Option A: Joule effect

Option B: Joule Thomsons effect

Option C: Comptons effect

Option D: Feed back effect

Correct Answer: Joule effect ✔

Option A: very good conductor

Option B: moderately good conductor

Option C: an insulator

Option D: no specific criterion available

Correct Answer: very good conductor ✔

Option A: free electrons

Option B: protons

Option C: neutrons

Option D: still under controversy

Correct Answer: free electrons ✔

Option A: One

Option B: Two

Option C: Four time

Option D: None of these

Correct Answer: Two ✔

Option A: 42Hz

Option B: 7 Hz

Option C: 256Hz

Option D: 262Hz

Correct Answer: 7 Hz ✔

Option A: isothermal law

Option B: adiabatic law

Option C: isochoric law

Option D: all of the above

Correct Answer: adiabatic law ✔

Option A: Longitudinal

Option B: Transverse

Option C: Periodic

Option D: both A and C

Correct Answer: both A and C ✔

Option A: ML-1T-2

Option B: ML-2T-2

Option C: MLT-2

Option D: ML2T-2

Correct Answer: ML-1T-2 ✔

Option A: only even harmonics are present

Option B: only odd harmonics are present

Option C: both even and odd harmonics are present

Option D: selected harmonics are present

Correct Answer: both even and odd harmonics are present ✔

Option A: 1/4f

Option B: 1/2f

Option C: frequency lower than 20 Hz

Option D: 2f

Correct Answer: frequency lower than 20 Hz ✔

Option A: sound wave only

Option B: light wave only

Option C: both sound and light waves

Option D: neither sound nor light wave

Correct Answer: both sound and light waves ✔

Option A: diffraction of sound waves

Option B: constructive and destructive interference

Option C: polarization

Option D: destructive interference

Correct Answer: constructive and destructive interference ✔

Option A: silence zone

Option B: interference

Option C: beats

Option D: resonance

Correct Answer: beats ✔

Option A: 313°C

Option B: 586°C

Option C: 819°C

Option D: 1172°C

Correct Answer: 819°C ✔

Option A: 20000 to 30000 hertz

Option B: 10 to 20 hertz

Option C: 2000 to 4000 hertz

Option D: 6000 to 8000 hertz

Correct Answer: 2000 to 4000 hertz ✔

Option A: increases

Option B: decreases

Option C: remains unchanged

Option D: may increase or decrease

Correct Answer: decreases ✔

Option A: 1.61 ms-1

Option B: 61.0 ms-1

Option C: 0.61 ms-1

Option D: 2.00 ms-1

Correct Answer: 0.61 ms-1 ✔

Option A: they are transverse waves

Option B: they are stationary waves

Option C: they require material medium for propagation

Option D: they do not have enough energy

Correct Answer: they require material medium for propagation ✔

Option A: refraction

Option B: polarization

Option C: interference

Option D: diffraction

Correct Answer: polarization ✔

Option A: decreases

Option B: increases

Option C: remains the same

Option D: any of above

Correct Answer: increases ✔

Option A: decreases

Option B: increases

Option C: remains unchanged

Option D: becomes zero

Correct Answer: remains unchanged ✔

Option A: matter waves

Option B: electromagnetic waves

Option C: carrier waves

Option D: mechanical waves

Correct Answer: mechanical waves ✔

Option A: Dopplers effect

Option B: Interference of waves

Option C: Beats phenomena

Option D: All of these

Correct Answer: Dopplers effect ✔

Option A: Number of loops

Option B: Tension in the string

Option C: Point where string is plucked

Option D: both A and C

Correct Answer: both A and C ✔

Option A: Two times

Option B: Three times

Option C: Four time

Option D: Six time

Correct Answer: Four time ✔

Option A: 281m/sec

Option B: 333m/sec

Option C: 340m/sec

Option D: all of the above

Correct Answer: 281m/sec ✔

Option A: fopen = 2 fclosed

Option B: fclosed = 2fopen

Option C: fopen = fclosed

Option D: fopen = 1 / f closed

Correct Answer: fopen = 2 fclosed ✔

Option A: an apparent increase in frequency

Option B: an apparent decrease in frequency

Option C: an apparent decrease in wavelength

Option D: no apparent change in frequency

Correct Answer: an apparent decrease in frequency ✔

Option A: constructive interference

Option B: destructive interference

Option C: beats

Option D: resonance

Correct Answer: destructive interference ✔

Option A: the sum of the frequencies of two tuning forks

Option B: the difference of the frequencies of two tuning forks

Option C: the ratio of the frequencies of two tuning forks

Option D: the frequency of either of the two tuning forks

Correct Answer: the difference of the frequencies of two tuning forks ✔

Option A: frequency in the audible range

Option B: frequency is greater than 20 kHz

Option C: frequency lower than 20 Hz

Option D: all of above

Correct Answer: frequency is greater than 20 kHz ✔

Option A: 313°C

Option B: 586°C

Option C: 819°C

Option D: 1172°C

Correct Answer: 819°C ✔

Option A: Water

Option B: air

Option C: copper

Option D: ammonia

Correct Answer: copper ✔

Option A: 332 ms-1

Option B: 320 ms-1

Option C: Zero

Option D: 224 ms-1

Correct Answer: Zero ✔

Option A: adiabatic

Option B: isothermal

Option C: isobaric

Option D: isochoric

Correct Answer: isothermal ✔

Option A: always an node in formed

Option B: always an antinode is formed

Option C: neither node nor antinode is formed

Option D: sometimes a node and sometimes an antinode is formed

Correct Answer: always an node in formed ✔

Option A: antinodes

Option B: nodes

Option C: troughs

Option D: crests

Correct Answer: antinodes ✔

Option A: frequency

Option B: period

Option C: Wave length

Option D: phase difference

Correct Answer: Wave length ✔

Option A: energy

Option B: mass

Option C: both

Option D: none

Correct Answer: energy ✔

Option A: equal to 45 deg

Option B: equal to 90 deg

Option C: equal to each other

Option D: none of the above

Correct Answer: equal to each other ✔

Option A: 1 N

Option B: 10 N

Option C: 100 N

Option D: none

Correct Answer: 1 N ✔

Option A: straight line

Option B: parabola

Option C: hyperbola

Option D: circle

Correct Answer: parabola ✔

Option A: at2/2

Option B: Vt

Option C: a2t/2

Option D: at2

Correct Answer: at2/2 ✔

Option A: 5m/s, 1m/s

Option B: 3m/s, 3m/s

Option C: 6m/s, 1m/s

Option D: 4m/s, 2m/s

Correct Answer: 5m/s, 1m/s ✔

Option A: Constant

Option B: not constant

Option C: constant if the rate of ejected gases is constant

Option D: constant for short range rocket.

Correct Answer: Constant ✔

Option A: a gas filled ballon

Option B: bullet fired from gun

Option C: a football kicked

Option D: a base ball shot

Correct Answer: a gas filled ballon ✔

Option A: -1

Option B: 1

Option C: 2

Option D: -2

Correct Answer: 1 ✔

Option A: momentum changes but K.E remain conserve

Option B: K.E changes but momentum remain conserve

Option C: both momentum and K.E changes

Option D: both momentum and K.E remain conserve

Correct Answer: K.E changes but momentum remain conserve ✔

Option A: provide him a larger inertia

Option B: decreases his inertia

Option C: decreases his momentum

Option D: increases his momentum

Correct Answer: increases his momentum ✔

Option A: chance of collision

Option B: force acting

Option C: velocity

Option D: impulse

Correct Answer: impulse ✔

Option A: distance

Option B: force

Option C: acceleration is zero

Option D: both A and B

Correct Answer: distance ✔

Option A: force acts on the body

Option B: mass of the body

Option C: velocity of the body

Option D: both mass and velocity of the body

Correct Answer: velocity of the body ✔

Option A: force

Option B: acceleration

Option C: velocity

Option D: both force and acceleration

Correct Answer: acceleration ✔

Option A: at rest

Option B: moving slowly

Option C: move with high velocity

Option D: move with velocity comparable to velocity of light

Correct Answer: move with velocity comparable to velocity of light ✔

Option A: 1st law

Option B: 2nd law

Option C: 3rd law

Option D: all 1st, 2nd and 3rd laws

Correct Answer: 1st law ✔

Option A: acceleration

Option B: distance

Option C: force

Option D: momentum

Correct Answer: acceleration ✔

Option A: acceleration is const

Option B: acceleration is variable

Option C: acceleration is zero

Option D: velocity is zero

Correct Answer: acceleration is zero ✔

Option A: speed changes

Option B: acceleration changes

Option C: direction of motion changes

Option D: displacement from origin changes

Correct Answer: displacement from origin changes ✔

Option A: due to their shape

Option B: due to air resistance

Option C: due to angle of projection

Option D: all of these

Correct Answer: due to air resistance ✔

Option A: force

Option B: impulse

Option C: velocity

Option D: both A and C

Correct Answer: force ✔

Option A: 45

Option B: 60

Option C: 30

Option D: none

Correct Answer: 45 ✔

Option A: second law of motion

Option B: third law of motion

Option C: first law of motion

Option D: law of gravitation

Correct Answer: third law of motion ✔

Option A: 4.9 m

Option B: 19.6 m

Option C: 39.2 m

Option D: 44.1 m

Correct Answer: 19.6 m ✔

Option A: tan-1 ¼

Option B: tan-1 4

Option C: tan-1 ½

Option D: tan-1 2

Correct Answer: tan-1 4 ✔

Option A: 1st law of motion

Option B: 2nd law of motion

Option C: Law of conservation of momentum

Option D: law of conservation of energy

Correct Answer: Law of conservation of momentum ✔

Option A: H=gT2/8

Option B: H=8T2/g

Option C: H=8g/T2

Option D: H=gT2

Correct Answer: H=gT2/8 ✔

Option A: straight inclined line.

Option B: parabola

Option C: inclined curve

Option D: declined curve

Correct Answer: straight inclined line. ✔

Option A: Centripetal force

Option B: Gravitational force

Option C: Their inertia

Option D: Centrifugal force

Correct Answer: Centrifugal force ✔

Option A: solid and soft

Option B: soft and elastic

Option C: solid and hard

Option D: hard and elastic

Correct Answer: solid and hard ✔

Option A: force, displacement

Option B: force, velocity

Option C: force, acceleration

Option D: force, momentum

Correct Answer: force, acceleration ✔

Option A: MLT-2

Option B: ML2T-2

Option C: ML2T2

Option D: ML-2T-2

Correct Answer: MLT-2 ✔

Option A: effect of force

Option B: existence of a force

Option C: existence of two forces

Option D: existence of pair of forces in nature

Correct Answer: existence of pair of forces in nature ✔

Option A: inertia

Option B: motion

Option C: velocity

Option D: force

Correct Answer: inertia ✔

Option A: volume

Option B: density

Option C: mass

Option D: temperature

Correct Answer: mass ✔

Option A: has zero acceleration

Option B: has uniform acceleration

Option C: has variable acceleration

Option D: moves in a circle

Correct Answer: has zero acceleration ✔

Option A: force

Option B: displacement

Option C: distance

Option D: acceleration

Correct Answer: displacement ✔

Option A: 10m/s

Option B: 36m/s

Option C: zero

Option D: infinite

Correct Answer: zero ✔

Option A: its velocity

Option B: its acceleration

Option C: its position vector

Option D: its momentum

Correct Answer: its position vector ✔

Option A: solid

Option B: liquid

Option C: both

Option D: none

Correct Answer: solid ✔

Option A: K

Option B: K-1

Option C: K -2

Option D: none

Correct Answer: K ✔

Option A: c-32/9

Option B: f -32/9 =c/5

Option C: f-32/9=c/9

Option D: none

Correct Answer: f -32/9 =c/5 ✔

Option A: Aeronautics

Option B: Acoustics

Option C: Aerostatics

Option D: Aetiology

Correct Answer: Acoustics ✔