Physics MCQs

Option A: diverging (or concave) lens

Option B: converging (or convex) lens

Option C: plano concave lens

Option D: plano convex lens

Correct Answer: converging (or convex) lens ✔

Option A: Simple vibratory motion

Option B: Standing wave motion

Option C: Vibratory motion like up and down

Option D: S.H.M likes the sound

Correct Answer: Standing wave motion ✔

Option A: Photon theory of light

Option B: Dual nature of light

Option C: Wave nature of light

Option D: Uncertain nature of light

Correct Answer: Photon theory of light ✔

Option A: Karl-Weins law

Option B: Rayleigh-Jeans law

Option C: Stephens law

Option D: Plancks

Correct Answer: Stephens law ✔

Option A: 107m/sec

Option B: Should be greater than the speed of light.

Option C: Be zero

Option D: Not be wave-like

Correct Answer: Should be greater than the speed of light. ✔

Option A: Property of matter and radiation

Option B: Two-dimensional motion

Option C: Emission of the certain wavelength

Option D: Very high velocity

Correct Answer: Property of matter and radiation ✔

Option A: Electron microscope

Option B: Scanning electron microscope

Option C: Magnetic imaging

Option D: None of the above

Correct Answer: Scanning electron microscope ✔

Option A: Electromagnetic gun

Option B: Source of electromagnetic waves

Option C: Deflecting charged particle

Option D: Converging source of electrons

Correct Answer: Converging source of electrons ✔

Option A: Penetrating power is high

Option B: Kinetic energy is large

Option C: Wavelength is very short

Option D: All the above reasons

Correct Answer: Wavelength is very short ✔

Option A: Wave property

Option B: Particle property

Option C: Energy particle

Option D: Electromagnetic wave property

Correct Answer: Wave property ✔

Option A: Particle property

Option B: Wave property

Option C: Light property

Option D: Quantum property

Correct Answer: Wave property ✔

Option A: v = 3 ×× 106 ms-1

Option B: v = 2 ×× 10 ms-1

Option C: v = 2 ×× 6 ms-1

Option D: v = 2 ×× 106 ms-1

Correct Answer: v = 2 ×× 106 ms-1 ✔

Option A: 5.53 x 10-36kg

Option B: 0 kg.

Option C: 2.46 x 10-36kg

Option D: 1.84 x 10-44kg

Correct Answer: 2.46 x 10-36kg ✔

Option A: p

Option B: n

Option C: 0

Option D: None

Correct Answer: p ✔

Option A: Zero

Option B: Double

Option C: Half

Option D: 1

Correct Answer: Double ✔

Option A: The maximum kinetic energy of the photoelectrons increases

Option B: The minimum kinetic energy of the photoelectrons decreases

Option C: The minimum kinetic energy of the photoelectrons increases

Option D: The average kinetic energy of the photoelectrons decreases

Correct Answer: The average kinetic energy of the photoelectrons decreases ✔

Option A: Becomes double

Option B: Remains same

Option C: Becomes half

Option D: First increases then decrease because of the curvilinear graph

Correct Answer: Remains same ✔

Option A: Increases because wavelength decreases

Option B: Decreases because speed decreases

Option C: Remains same

Option D: Increases then decrease

Correct Answer: Remains same ✔

Option A: λ

Option B: Speed of sound

Option C: Speed of lightB.

Option D: h

Correct Answer: h ✔

Option A: 103 photons of wavelength 2 pm (γ-rays)

Option B: 102 photons of wavelength 1nm (x-rays)

Option C: 106 photons of wavelength 50?m (infrared)

Option D: 106 photons of wavelength 200nm (UV)

Correct Answer: 103 photons of wavelength 2 pm (γ-rays) ✔

Option A: A unit of energy

Option B: A positively charged particle

Option C: A quantum of electromagnetic radiation

Option D: A unit of wavelength

Correct Answer: A quantum of electromagnetic radiation ✔

Option A: Interference

Option B: Polarization

Option C: Electron diffraction

Option D: Refraction

Correct Answer: Electron diffraction ✔

Option A: The angle of scattering is 90°

Option B: The angle of scattering is 60°

Option C: The angle of scattering is 180°

Option D: The angle of scattering is 0

Correct Answer: The angle of scattering is 180° ✔

Option A: Ampere

Option B: Plank

Option C: Thomson

Option D: Einstein

Correct Answer: Einstein ✔

Option A: shifts towards longer wavelength

Option B: shifts towards shorter wavelength

Option C: remain the same

Option D: shifts towards longer as well as shorter wavelengths

Correct Answer: shifts towards shorter wavelength ✔

Option A: 1/2 mvmax2=hf+Φ

Option B: 1/2 mvmax2-hf = Φ

Option C: 1/2 mvmax2=hf-Φ

Option D: All of above are correct

Correct Answer: 1/2 mvmax2=hf-Φ ✔

Option A: infinite

Option B: zero

Option C: very small

Option D: 1.67 x 10-27 kg

Correct Answer: zero ✔

Option A: equal to its rest mass

Option B: double of its rest mass

Option C: infinite

Option D: zero

Correct Answer: infinite ✔

Option A: ∆E = h/m∆c(1-cosθ)

Option B: ∆E . ∆t = h

Option C: mc2 = hv

Option D: Any of above

Correct Answer: ∆E . ∆t = h ✔

Option A: equal to its rest mass

Option B: double of its rest mass

Option C: infinite

Option D: zero

Correct Answer: infinite ✔

Option A: the threshold frequency for the metal surface

Option B: the intensity of incident light

Option C: the frequency of incident light and work function of the metal surface

Option D: all of the above

Correct Answer: the frequency of incident light and work function of the metal surface ✔

Option A: 6.625x1023N-s

Option B: 66.25x1023N-s

Option C: 662.5x1023N-s

Option D: data is insufficient

Correct Answer: 6.625x1023N-s ✔

Option A: zero

Option B: hv/c2

Option C: hv/c

Option D: c2/hv

Correct Answer: zero ✔

Option A: greater than one meter

Option B: less than one meter

Option C: one meter

Option D: a foolish question

Correct Answer: less than one meter ✔

Option A: a frame of reference which is either at rest or moves with a constant velocity is called an inertial frame of reference

Option B: an un-accelerated frame of reference is called an inertial frame of reference

Option C: all the frames of reference in uniform rectilinear motion are equivalent

Option D: Newtons laws of motion are valid in an accelerated (non inertial) frame of reference

Correct Answer: Newtons laws of motion are valid in an accelerated (non inertial) frame of reference ✔

Option A: 2.50 GWh

Option B: 25.00 GWh

Option C: 0.26 GWh

Option D: 250 GWh

Correct Answer: 25.00 GWh ✔

Option A: T.V waves

Option B: Microwaves

Option C: X-rays

Option D: γ-rays

Correct Answer: γ-rays ✔

Option A: Ec2

Option B: E/c2

Option C: E/c

Option D: c2/E

Correct Answer: E/c2 ✔

Option A: Maximum as well minimum

Option B: Minimum only

Option C: Maximum only

Option D: 0

Correct Answer: Maximum only ✔

Option A: Drag force of air

Option B: Gravity

Option C: Tension in the string

Option D: None of these

Correct Answer: Drag force of air ✔

Option A: None

Option B: 1

Option C: 2

Option D: 3

Correct Answer: 3 ✔

Option A: 10 cm

Option B: 5 cm

Option C: 15 cm

Option D: 7.5 cm

Correct Answer: 5 cm ✔

Option A: Gravity

Option B: Spring

Option C: Hand

Option D: All of these

Correct Answer: Gravity ✔

Option A: Mean position

Option B: Elsewhere

Option C: Extreme position

Option D: None

Correct Answer: Extreme position ✔

Option A: S.H.M

Option B: Vibratory motion

Option C: Both B and D

Option D: None S.H.M

Correct Answer: Both B and D ✔

Option A: Mean position

Option B: Extreme position

Option C: Both A and B

Option D: None

Correct Answer: Mean position ✔

Option A: Increase

Option B: Decrease

Option C: Remains the same

Option D: Is zero

Correct Answer: Increase ✔

Option A: Vibratory motion

Option B: Rotatory motion

Option C: S.H.M

Option D: Both A and C

Correct Answer: Both A and C ✔

Option A: Simple harmonic vibration

Option B: Natural vibration

Option C: Driven harmonic vibration

Option D: Free vibration

Correct Answer: Driven harmonic vibration ✔

Option A: Amplitude of vibration

Option B: Energy of vibration

Option C: Both amplitude and energy

Option D: Neither amplitude nor energy

Correct Answer: Both amplitude and energy ✔

Option A: P.E is zero

Option B: Acceleration is zero

Option C: Restoring force is zero

Option D: All P.E acceleration and restoring force are zero

Correct Answer: All P.E acceleration and restoring force are zero ✔

Option A: Amplitude

Option B: Square of the amplitude

Option C: 2 x amplitude

Option D: 4 x amplitude

Correct Answer: 4 x amplitude ✔

Option A: Radio

Option B: Microwave oven

Option C: Both in radio and microwave oven

Option D: Neither in radio nor in a microwave oven

Correct Answer: Radio ✔

Option A: It’s mass

Option B: It’s length

Option C: Square of its length

Option D: The square root of its length

Correct Answer: The square root of its length ✔

Option A: Directly proportional to the damping force

Option B: Inversely proportional to the damping force

Option C: Equal to the square of damping force

Option D: Equal to the square of damping force

Correct Answer: Inversely proportional to the damping force ✔

Option A: Displacement only

Option B: The direction of motion only

Option C: Both displacement and direction of motion

Option D: Neither displacement nor direction of motion

Correct Answer: Both displacement and direction of motion ✔

Option A: mg sin θ

Option B: mg sin θ

Option C: mg cos θ

Option D: mg cos θ

Correct Answer: mg sin θ ✔

Option A: T.V

Option B: Radio

Option C: Microwave oven

Option D: Bulb

Correct Answer: Bulb ✔

Option A: x = x’

Option B: x = x’/2

Option C: x = x’/4

Option D: x = x(2)’/2

Correct Answer: x = x’ ✔

Option A: 0°

Option B: 45°

Option C: 90°

Option D: 180°

Correct Answer: 0° ✔

Option A: 100 cm

Option B: 99 cm

Option C: 99.2 cm

Option D: 98 cm

Correct Answer: 99.2 cm ✔

Option A: 1

Option B: 2

Option C: 3

Option D: 4

Correct Answer: 1 ✔

Option A: Mean position

Option B: Extreme position

Option C: In between mean and extreme

Option D: All positions during SHM

Correct Answer: All positions during SHM ✔

Option A: Infinite

Option B: T/g

Option C: Zero

Option D: g/T

Correct Answer: Infinite ✔

Option A: Double

Option B: Four times

Option C: One half

Option D: None time

Correct Answer: Four times ✔

Option A: Force

Option B: Pressure

Option C: Surface tension

Option D: Loudness

Correct Answer: Surface tension ✔

Option A: Rotational motion

Option B: Circular motion

Option C: Musical arrangement

Option D: Vibratory motion

Correct Answer: Vibratory motion ✔

Option A: 1 hertz

Option B: 0.5 hertz

Option C: 1.5 hertz

Option D: 2.5 hertz

Correct Answer: 0.5 hertz ✔

Option A: mg cosθ

Option B: mg sinθ

Option C: mg tonθ

Option D: mg

Correct Answer: mg sinθ ✔

Option A: 4 times

Option B: 6 times

Option C: 8 times

Option D: 2 times

Correct Answer: 2 times ✔

Option A: 100 cm

Option B: 99 cm

Option C: 99.2 cm

Option D: 98 cm

Correct Answer: 99.2 cm ✔

Option A: 4 seconds

Option B: 3 seconds

Option C: 2 seconds

Option D: 6 seconds

Correct Answer: 2 seconds ✔

Option A: The square root of amplitude

Option B: The amplitude

Option C: Reciprocal of amplitude

Option D: Square of an amplitude

Correct Answer: Square of an amplitude ✔

Option A: w2x

Option B: wx2

Option C: w2x

Option D: wx2

Correct Answer: w2x ✔

Option A: mean position

Option B: extreme position

Option C: middle between the mean and extreme position on the right side

Option D: middle between the mean and extreme position on the left side

Correct Answer: mean position ✔

Option A: Vibration S-2

Option B: Radian

Option C: Hertz

Option D: ms-1

Correct Answer: Hertz ✔

Option A: Standing wave

Option B: Sine wave

Option C: Square wave

Option D: None

Correct Answer: Sine wave ✔

Option A: P E remains constant

Option B: K E remain constant

Option C: total energy remains constant

Option D: total momentum remains constant

Correct Answer: total energy remains constant ✔

Option A: Laminar

Option B: Streamline

Option C: Turbulent

Option D: Both A and B

Correct Answer: Turbulent ✔

Option A: 120 to 80 torr

Option B: 100 to 80 torr

Option C: 120 to 60 torr

Option D: 60 to 140 torr

Correct Answer: 120 to 80 torr ✔

Option A: Convergent duct

Option B: Divergent duct

Option C: Throat

Option D: None of these

Correct Answer: None of these ✔

Option A: Water

Option B: Honey

Option C: Mercury

Option D: Oil (kerosene)

Correct Answer: Water ✔

Option A: Laminar flow

Option B: Turbulent flow

Option C: Both laminar and turbulent flow

Option D: None of these

Correct Answer: Both laminar and turbulent flow ✔

Option A: Wing shape

Option B: Aerofoil profile

Option C: Curved profile

Option D: None of these

Correct Answer: Aerofoil profile ✔

Option A: Laminar

Option B: Turbulent

Option C: Mixed

Option D: None

Correct Answer: Laminar ✔

Option A: Venturi meter

Option B: Bernoulli equation

Option C: Both A and B

Option D: None

Correct Answer: Both A and B ✔

Option A: Statically

Option B: Dynamically

Option C: Some time static and sometimes dynamic

Option D: None of these

Correct Answer: Dynamically ✔

Option A: Low

Option B: High

Option C: Very high

Option D: Some time high and some time low

Correct Answer: Low ✔

Option A: P1 – P2 = 1/2 ρV22

Option B: V2 = 2g (h1-h2)

Option C: P = 1 /2ρV2 = ρgh = constant

Option D: A1 V1 = A2 V2 = constant

Correct Answer: P1 – P2 = 1/2 ρV22 ✔

Option A: Non-viscous

Option B: Incompressible

Option C: Steady flow

Option D: Possess all properties

Correct Answer: Possess all properties ✔

Option A: Bernoulli effect

Option B: Torricelli effect

Option C: Venturi effect

Option D: Stokes effect

Correct Answer: Venturi effect ✔

Option A: Stationary

Option B: Moving

Option C: Moving slowly

Option D: Moving fast

Correct Answer: Moving ✔

Option A: Venturimeter

Option B: Blood pressure

Option C: Sphygmomanometer

Option D: Sonometer

Correct Answer: Sphygmomanometer ✔

Option A: Low blood pressure

Option B: High blood pressure

Option C: Normal blood pressure

Option D: Abnormal blood pressure

Correct Answer: High blood pressure ✔

Option A: 1.333 Nm-2

Option B: .1333 Nm-2

Option C: 13.33 Nm-2

Option D: 133.3 Nm2

Correct Answer: 133.3 Nm2 ✔

Option A: Rough

Option B: Square

Option C: Circular

Option D: Spherical

Correct Answer: Spherical ✔

A.The shinning side of the ball
B. Rough side
C. The seam of the ball
D. Goes straight

Correct Answer: A.The shinning side of the ball ✔

Option A: Fluid pressure

Option B: Fluid density

Option C: Fluid speed

Option D: None

Correct Answer: Fluid pressure ✔

Option A: Mass

Option B: Energy

Option C: Momentum

Option D: Fluid

Correct Answer: Energy ✔

Option A: 4:06

Option B: 4:09

Option C: 2:09

Option D: 4.3

Correct Answer: 4:09 ✔