Physics MCQs

Option A: High voltage A.C

Option B: Low voltage A.C

Option C: Alternating current at its peak value

Option D: D.C current at peak value

Correct Answer: Alternating current at its peak value ✔

Option A: Energy state

Option B: Valence band

Option C: ve energy state

Option D: conduction band

Correct Answer: Valence band ✔

Option A: Fusion

Option B: Polymerization

Option C: Crystallization

Option D: Subtraction

Correct Answer: Polymerization ✔

Option A: The extension of the wire is proportional to the force applied

Option B: The weight of the wire is negligible

Option C: The wire is not stretched beyond its elastic limit

Option D: The cross sectional area of the wire remains constant

Correct Answer: The extension of the wire is proportional to the force applied ✔

Option A: Directly proportional to extension

Option B: Directly proportional to strain

Option C: Directly proportional to square of amplitude

Option D: Inversely proportional to extension

Correct Answer: Directly proportional to extension ✔

Option A: Stress/strain

Option B: (stress/strain)

Option C: Stress x strain

Option D: (Stress / strain)

Correct Answer: (Stress / strain) ✔

Option A: 0.01J

Option B: 0.02J

Option C: 0.04J

Option D: 1.0J

Correct Answer: 0.01J ✔

Option A: Y∝

Option B: 2Y∝

Option C: Y∝/2

Option D: Y∝2

Correct Answer: Y∝ ✔

Option A: FE

Option B: (FE)

Option C: FE2/L

Option D: FE2

Correct Answer: FE ✔

Option A: Stress

Option B: Strain

Option C: Youngs modulus

Option D: Pressure

Correct Answer: Strain ✔

Option A: MLT-2

Option B: ML-2T-1

Option C: ML-1T-2

Option D: ML-T-1

Correct Answer: ML-1T-2 ✔

Option A: Rubber

Option B: Steel

Option C: Glass

Option D: Copper

Correct Answer: Steel ✔

Option A: direct combustion

Option B: fermentation

Option C: both A and B

Option D: none of these

Correct Answer: both A and B ✔

Option A: rotory

Option B: photovoltaic

Option C: galvanic

Option D: non of these

Correct Answer: photovoltaic ✔

Option A: non-renewable

Option B: stable

Option C: renewable

Option D: none of the above

Correct Answer: renewable ✔

Option A: non-conservative force

Option B: conservative force

Option C: both A and B

Option D: none of these

Correct Answer: non-conservative force ✔

Option A: area

Option B: work done

Option C: power

Option D: none of these

Correct Answer: work done ✔

Option A: man does more work than child

Option B: child does more work than man

Option C: both do the same amount of work

Option D: it is a foolish question

Correct Answer: child does more work than man ✔

Option A: Kinetic energy increases

Option B: P.E. between them increases

Option C: P.E. between them decreases

Option D: P.E. between tem does not change

Correct Answer: B. P.E. between them increases ✔

Option A: V esc = 1/2Vo

Option B: V esc = -2 Vo

Option C: V esc = Vo

Option D: V esc = 2Vo

Correct Answer: V esc = -2 Vo ✔

Option A: torque

Option B: angular momentum

Option C: linear momentum

Option D: power

Correct Answer: torque ✔

Option A: 36 x 106 J

Option B: 36 x 1012 J

Option C: 36 x 109 J

Option D: 36 x 108 J

Correct Answer: 36 x 108 J ✔

Option A: its K.E is doubled

Option B: its acceleration is doubled

Option C: its P.E is doubled

Option D: its momentum is doubled

Correct Answer: its momentum is doubled ✔

Option A: no formula

Option B: a formula mgh only

Option C: a formula

Option D: no general formula

Correct Answer: no general formula ✔

Option A: Earth

Option B: Neptune

Option C: Jupiter

Option D: Moon

Correct Answer: Jupiter ✔

Option A: once

Option B: twice

Option C: four time

Option D: eight time

Correct Answer: twice ✔

Option A: change in its K.E always

Option B: change in its P.E always

Option C: change in its K.E and change in its P.E

Option D: neither change in K.E and nor change in its P.E

Correct Answer: change in its K.E and change in its P.E ✔

Option A: displacement

Option B: acceleration

Option C: power

Option D: energy

Correct Answer: power ✔

Option A: 1 hp = 546 watts

Option B: 1 hp = 746 watts

Option C: 1 hp = 1000 watts

Option D: 1 hp = 946 watts

Correct Answer: 1 hp = 746 watts ✔

Option A: frictional force

Option B: gravitational force

Option C: elastic force

Option D: centripetal force

Correct Answer: centripetal force ✔

Option A: electric field

Option B: conservative field

Option C: electromagnetic field

Option D: gravitational field

Correct Answer: conservative field ✔

Option A: 45°

Option B: 90°

Option C: 180°

Option D: 0°

Correct Answer: 0° ✔

Option A: 1.44kw/m2

Option B: 1.4kw/m2

Option C: 1 kw/m2

Option D: none

Correct Answer: 1 kw/m2 ✔

Option A: sun

Option B: earth

Option C: both A and B

Option D: moon

Correct Answer: moon ✔

Option A: power

Option B: work

Option C: impulse

Option D: torque

Correct Answer: power ✔

Option A: [ML2T-3]

Option B: [ML2T-2]

Option C: [ML2T3]

Option D: none of these

Correct Answer: [ML2T-3] ✔

Option A: positive

Option B: negative

Option C: zero

Option D: none of these

Correct Answer: negative ✔

Option A: heat energy to K.E

Option B: elastic P.E to K.E

Option C: elemical energy to elastic P.E

Option D: K.E to elastic P.E.

Correct Answer: elastic P.E to K.E ✔

Option A: 1600 ms-1

Option B: 50.6 ms-1

Option C: 71.6 ms-1

Option D: 2263ms-1

Correct Answer: 50.6 ms-1 ✔

Option A: 4.2 km S-1

Option B: 7.5 km S-1

Option C: 9.5 km S-1

Option D: 1.1 km S-1

Correct Answer: 1.1 km S-1 ✔

Option A: 120 J

Option B: 60 J

Option C: 30 J

Option D: 0.02 J

Correct Answer: 120 J ✔

Option A: friction

Option B: electric

Option C: gravitational

Option D: magnetic

Correct Answer: friction ✔

Option A: momentum increases 4 times and K.E increases 2 times

Option B: momentum and K.E. remain same

Option C: momentum increases 2 times and K.E increases constant

Option D: momentum increases 2 times and K.E increases 4 time

Correct Answer: momentum increases 2 times and K.E increases 4 time ✔

Option A: always positive

Option B: always negative

Option C: positive only for small frictional force

Option D: positive only for large frictional force

Correct Answer: always negative ✔

Option A: decay of radioactive element in the earth

Option B: compression of material in the earth

Option C: residual lost of the earth

Option D: all as said in A – B and C

Correct Answer: D. all as said in A – B and C ✔

Option A: its mass

Option B: the angle at which it is thrown

Option C: both its mass and the angle at which it is thrown

Option D: gravitational field of earth

Correct Answer: its mass ✔

Option A: force into small interval

Option B: displacement into small interval

Option C: both force and displacement into small intervals

Option D: force into small and displacement into large intervals

Correct Answer: displacement into small interval ✔

Option A: Proton

Option B: electron

Option C: neutron

Option D: a-particle

Correct Answer: electron ✔

Option A: any rate

Option B: at variable rate

Option C: at uniform rate

Option D: at high rate

Correct Answer: at uniform rate ✔

Option A: 38.2 J

Option B: 392.1 J

Option C: 39.2 J

Option D: 3.92 J

Correct Answer: 39.2 J ✔

Option A: zero

Option B: minimum

Option C: infinity

Option D: maximum

Correct Answer: maximum ✔

Option A: Diffraction

Option B: Polarization

Option C: Interference

Option D: Reflection

Correct Answer: Diffraction ✔

Option A: Newton

Option B: Einstein

Option C: Michelson

Option D: Galileo

Correct Answer: Michelson ✔

Option A: luminous

Option B: non-luminous

Option C: incandescent

Option D: bright

Correct Answer: luminous ✔

Option A: equally spaced

Option B: distance between them increases

Option C: distance between then decreases

Option D: they are adjacent with no space in between

Correct Answer: distance between then decreases ✔

Option A: plane polarized

Option B: un-polarized

Option C: circularly polarized

Option D: elliptically polarized

Correct Answer: plane polarized ✔

Option A: 500 mm

Option B: 5 x 10-3 mm

Option C: 2 x 10-5 mm

Option D: 2 x 10-3 mm

Correct Answer: 2 x 10-3 mm ✔

Option A: more for a round edge

Option B: less for a round edge

Option C: more for a sharp edge

Option D: less for a sharp edge

Correct Answer: more for a sharp edge ✔

Option A: 60°

Option B: 90°

Option C: 180°

Option D: 45°

Correct Answer: 180° ✔

Option A: diffraction

Option B: dispersion

Option C: interference

Option D: polarization

Correct Answer: interference ✔

Option A: Newton

Option B: Michelson

Option C: Huygen

Option D: Young

Correct Answer: Michelson ✔

Option A: same wavelength

Option B: same amplitude of vibration

Option C: same wave length with constant phase difference

Option D: same amplitude and wavelength

Correct Answer: same wave length with constant phase difference ✔

Option A: crest

Option B: trough

Option C: wavelength

Option D: wave front

Correct Answer: wave front ✔

Option A: bright

Option B: dark for large wavelength

Option C: dark

Option D: bright for large wavelength

Correct Answer: bright ✔

Option A: waves

Option B: particles

Option C: photons

Option D: it was not his discovery

Correct Answer: photons ✔

Option A: 15 minutes

Option B: 10 minutes

Option C: 8 minutes

Option D: 8 minutes 30 seconds

Correct Answer: 8 minutes ✔

Option A: thickness of the film only

Option B: nature of the film only

Option C: angle of indidence only

Option D: all thickness nature and angle of incidence

Correct Answer: all thickness nature and angle of incidence ✔

Option A: sugar

Option B: tartaric acid

Option C: water

Option D: sodium chlorate

Correct Answer: water ✔

Option A: Convex lens

Option B: Interferometer

Option C: Diffraction grating

Option D: Concave

Correct Answer: Diffraction grating ✔

Option A: Interference

Option B: Diffraction

Option C: Polarization

Option D: Refraction

Correct Answer: Diffraction ✔

Option A: no interference fringes are observed

Option B: no diffraction fringes are observed

Option C: no fringes observed

Option D: interference pattern not disturbed

Correct Answer: no interference fringes are observed ✔

Option A: black

Option B: purple

Option C: green

Option D: no scientific reasoning available

Correct Answer: black ✔

Option A: radio waves

Option B: ultraviolot rays

Option C: X-rays

Option D: sound waves

Correct Answer: sound waves ✔

Option A: vibration in all direction

Option B: vibration in two mutually perpendicular directions

Option C: vibration take place in a direction perpendicular to the direction of propagation of light

Option D: no vibration at all

Correct Answer: vibration take place in a direction perpendicular to the direction of propagation of light ✔

Option A: 4 x 10-10 m

Option B: 2 x 10-10 m

Option C: 0.02×10-10m

Option D: 20×10-10m

Correct Answer: 2 x 10-10 m ✔

Option A: 5000 nm

Option B: 5000A

Option C: 500m

Option D: 2000um

Correct Answer: 5000A ✔

Option A: diffraction

Option B: reflection

Option C: polarization

Option D: scattering

Correct Answer: scattering ✔

Option A: bright fringes are wider than dark fringes

Option B: dark fringes are wider than bright fringe

Option C: both dark and bright fringes are of equal width

Option D: central fringes are brighter than the outer fringes

Correct Answer: both dark and bright fringes are of equal width ✔

Option A: alternate dark and bright fringes will be seen

Option B: coloured fringes will be seen

Option C: no interference fringes will be seen

Option D: impossible to predict

Correct Answer: coloured fringes will be seen ✔

Option A: polarization

Option B: constructive interference

Option C: destructive interference

Option D: diffraction

Correct Answer: destructive interference ✔

Option A: light form fluorescent tube

Option B: light form neon lamp

Option C: light form sodium lamp

Option D: light form simple lamp

Correct Answer: light form sodium lamp ✔

Option A: a cylindrical wave front

Option B: an elliptical wave front

Option C: a spherical wave front

Option D: a plane wave front

Correct Answer: a spherical wave front ✔

Option A: reflection

Option B: refraction

Option C: diffraction

Option D: polarization

Correct Answer: polarization ✔

Option A: Hertz

Option B: Fresnel

Option C: Einstein

Option D: Plank

Correct Answer: Einstein ✔

Option A: velocity

Option B: wavelength

Option C: amplitude

Option D: frequency

Correct Answer: frequency ✔

Option A: interference fringes only

Option B: diffraction fringes only

Option C: both interference and diffraction fringes

Option D: polirized frringes

Correct Answer: both interference and diffraction fringes ✔

Option A: vibrating plane

Option B: polarization plane

Option C: diffraction plane

Option D: interference plane

Correct Answer: polarization plane ✔

Option A: 100 watt

Option B: 200 watt

Option C: 300 watt

Option D: 60 watt

Correct Answer: 300 watt ✔

Option A: high power

Option B: high voltage

Option C: high current

Option D: over heating

Correct Answer: over heating ✔

Option A: IRt

Option B: I2R

Option C: I2Rt

Option D: VIt

Correct Answer: I2R ✔

Option A: watt

Option B: horse power

Option C: kilo watt

Option D: kilowatt hour

Correct Answer: watt ✔

Option A: zero almost

Option B: infinite almost

Option C: no prediction at all

Option D: may increase or decrease

Correct Answer: zero almost ✔

Option A: hyperbola

Option B: ellipse

Option C: parabola

Option D: straight line

Correct Answer: straight line ✔

Option A: negative charges

Option B: positive charges

Option C: both negative and positive charges

Option D: neutral particles

Correct Answer: positive charges ✔

Option A: 12

Option B: 24

Option C: 5

Option D: 1100

Correct Answer: 12 ✔

Option A: increase with rise in temperature

Option B: decrease with rise in temperature

Option C: will remain same

Option D: depends upon altitude of experimentation

Correct Answer: increase with rise in temperature ✔

Option A: 40 W bulb

Option B: 60 W blub

Option C: 100 W blub

Option D: all will burn equally brightly

Correct Answer: 40 W bulb ✔

Option A: source of EMF

Option B: conductor

Option C: resistor

Option D: capacitor

Correct Answer: source of EMF ✔

Option A: iron

Option B: tungsten

Option C: silver

Option D: copper

Correct Answer: copper ✔

Option A: finite

Option B: infinite

Option C: zero

Option D: changes with every conductor

Correct Answer: zero ✔