Physics MCQs

Option A: More than the true weight

Option B: More or less the true weight

Option C: Less than the true weight

Option D: Equal to the true weight

Correct Answer: More than the true weight ✔

Option A: Decreases

Option B: Increases

Option C: Remains same

Option D: Becomes Zero

Correct Answer: Increases ✔

Option A: Water

Option B: Alcohol

Option C: Methane

Option D: Kerosene

Correct Answer: Water ✔

Option A: Semiconductor

Option B: Conductor

Option C: Insulator

Option D: None of the above

Correct Answer: Semiconductor ✔

Option A: Gas only

Option B: Liquid only

Option C: Solid only

Option D: All of the above

Correct Answer: Solid only ✔

Option A: Graphite

Option B: Heavy Water

Option C: Cadmium

Option D: All of these

Correct Answer: Cadmium ✔

Option A: Indivisible 

Option B: Divisible

Option C: Both

Option D: Non of these

Correct Answer: Indivisible  ✔

Option A: Due to position of object

Option B: Due to motion of object

Option C: Due to gravity

Option D: None of these

Correct Answer: Due to position of object ✔

Option A: Direction of velocity and acceleration changes

Option B: Direction of Displacement and acceleration changes

Option C: Direction of Displacement and Velocity changes

Option D: Direction of Displacement, Velocity and acceleration changes

Correct Answer: Direction of Displacement and Velocity changes ✔

Option A: 0

Option B: π2

Option C: 2 π2

Option D: 4 π2

Correct Answer: B. π² ✔

Option A: Zero

Option B: E/2

Option C: E

Option D: E/(2)1/2

Correct Answer: E/2 ✔

Option A: in adiabatic expansion

Option B: in adiabatic compression

Option C: in isothermal expansion

Option D: in isothermal compression

Correct Answer: in adiabatic compression ✔

Option A: 4 : 1

Option B: 1 : 1

Option C: 2 : 1

Option D: 1 : 2

Correct Answer: 1 : 1 ✔

Option A: 320 Hz

Option B: 640 Hz

Option C: 160 Hz

Option D: 480 Hz

Correct Answer: 160 Hz ✔

Option A: F

Option B: F/2

Option C: F/4

Option D: F/8

Correct Answer: F ✔

Option A: – 1.6 × 10–12 coulomb

Option B: – 1.6 × 10–13 coulomb

Option C: – 1.6 × 10 –18 coulomb

Option D: – 1.6 × 10 coulomb

Correct Answer: B. – 1.6 × 10^–13 coulomb ✔

Option A: 100 C m–2

Option B: 200 C m–2

Option C: 300 C m–2

Option D: 400 C m–2

Correct Answer: D. 400 C m^–2 ✔

Option A: Decreases

Option B: increases

Option C: remains the same

Option D: becomes zero

Correct Answer: increases ✔

Option A: one electron

Option B: 10 –6 electrons

Option C: 106 electrons

Option D: 6.25 × 1012 electrons

Correct Answer: D. 6.25 × 10¹² electrons ✔

Option A: The resistance of each of them increases.

Option B: The resistance of each of them decreases.

Option C: The resistance of copper decreases and that of germanium increases.

Option D: The resistance of copper increases and that of germanium decreases

Correct Answer: The resistance of copper decreases and that of germanium increases. ✔

Option A: repel each other

Option B: not interact with each other

Option C: attract each other

Option D: be deflected normal to the plane containing the two beams.

Correct Answer: repel each other ✔

Option A: zero

Option B: 5 H

Option C: 5000 H

Option D: 5 mH

Correct Answer: 5 mH ✔

Option A: Eddy currents

Option B: Hysteresis

Option C: Resistance in winding

Option D: None of these

Correct Answer: Eddy currents ✔

Option A: Lyman series is a continuous spectrum.

Option B: Paschen series is a line spectrum in the infra red.

Option C: Balmer series is a line spectrum in the ultraviolet.

Option D: the spectral series formula can be derived from the Rutherford model of the hydrogen atom.

Correct Answer: Paschen series is a line spectrum in the infra red. ✔

Option A: Protons

Option B: Electrons

Option C: Metal atoms

Option D: Metal ions

Correct Answer: Electrons ✔

Option A: It’s works equals the change in the kinetic energy of the particle.

Option B: It’s obeys Newton’s second law

Option C: It’s obeys Newton’s third law

Option D: It work depends on the end points of every motion, not on the path between.

Correct Answer: D. It work depends on the end points of every motion, not on the path between ✔

Option A: Circular

Option B: Made of two straight line segments

Option C: Hyperbolic

Option D: Parabolic

Correct Answer: Parabolic ✔

Option A: Vaccum

Option B: Glass

Option C: Water

Option D: Air

Correct Answer: Glass ✔

Option A: inductance

Option B: voltage

Option C: capacitance

Option D: None of these

Correct Answer: capacitance ✔

Option A: 50%

Option B: 100%

Option C: 23.6%

Option D: 29.4%

Correct Answer: 23.6% ✔

Option A: Vernier Callipers

Option B: Screw Gauge

Option C: Bore Gauge

Option D: None

Correct Answer: Vernier Callipers ✔

Option A: Weight

Option B: Momentum

Option C: Tension

Option D: Torque

Correct Answer: Tension ✔

Option A: 7.2 m/s²

Option B: 1.62 m/s²

Option C: 9.8 m/s²

Option D: 3.75 m/s²

Correct Answer: 1.62 m/s² ✔

Option A: 274 m/s²

Option B: 362 m/s²

Option C: 300 m/s²

Option D: None  of these

Correct Answer: 274 m/s² ✔

Option A: 9.80 m/s²

Option B: 7.21 m/s²

Option C: 1.62 m/s²

Option D: None of these

Correct Answer: 9.80 m/s² ✔

Option A: magnitude

Option B: direction 

Option C: both

Option D: None of these

Correct Answer: direction  ✔

Option A: Quantum theory

Option B: General theory of relativity

Option C: Special theory of relativity

Option D: None of these

Correct Answer: Special theory of relativity ✔

Option A: Ship

Option B: Light

Option C: Sound

Option D: aircraft

Correct Answer: aircraft ✔

Option A: Electrons

Option B: Protons

Option C: Neutrons

Option D: Neutrino

Correct Answer: Electrons ✔

Option A: Sudden compression of gases

Option B: Sudden expansion of gases

Option C: Cooling of gases

Option D: Heating of gases

Correct Answer: Sudden expansion of gases ✔

Option A: Transmitter

Option B: Transmission channel

Option C: Receiver

Option D: Hardware

Correct Answer: Transmission channel ✔

Option A: every action there is an equal and opposite reaction.

Option B: attraction or repulsion between two charges

Option C: volume of a given mass of gas increases or decreases

Option D: temperature remaining constant, volume of a given mass of a gas varies inversely

Correct Answer: A. every action there is an equal and opposite reaction ✔

Option A: Oil is very light

Option B: Oil is volatile

Option C: Diffusion of oil through the wick

Option D: Capillary action phenomenon

Correct Answer: Capillary action phenomenon ✔

Option A: Cadmium

Option B: Thorium

Option C: Radium

Option D: Uranium

Correct Answer: Cadmium ✔

Option A: Angstrom

Option B: Micro

Option C: Nano meter

Option D: Fermi

Correct Answer: Fermi ✔

Option A: Moment

Option B: Momentum

Option C: Torque

Option D: None of these

Correct Answer: Torque ✔

Option A: Ultraviolet

Option B: Sound

Option C: Infra-Red

Option D: Micro

Correct Answer: Sound ✔

Option A: Egyptians

Option B: Greek

Option C: Latin

Option D: Persians

Correct Answer: Greek ✔

Option A: Acceleration

Option B: Displacement

Option C: Speed

Option D: Force

Correct Answer: Speed ✔

Option A: 0.001mm

Option B: 0.01mm

Option C: 0.1mm

Option D: 0.0001mm

Correct Answer: 0.1mm ✔

Option A: Time

Option B: Density

Option C: Volume

Option D: Area

Correct Answer: Time ✔

Option A: G

Option B: h

Option C: M

Option D: E

Correct Answer: M ✔

Option A: Candela

Option B: Cm

Option C: Ampere

Option D: Second

Correct Answer: Candela ✔

Option A: Biophysics

Option B: Geophysics

Option C: Plasma physics

Option D: Atomic physics

Correct Answer: Geophysics ✔

Option A: 22 feet

Option B: 32 feet

Option C: 52 feet

Option D: 42 feet

Correct Answer: 32 feet ✔

Option A: 4.00 s

Option B: 5.00 s

Option C: 6.00 s

Option D: 7.00 s

Correct Answer: 6.00 s ✔

Option A: 1.67

Option B: 1.4

Option C: γ = 1.3

Option D: None

Correct Answer: 1.4 ✔

Option A: isothermal

Option B: isochoric

Option C: isobaric

Option D: isentropic

Correct Answer: isothermal ✔

Option A: efficiency

Option B: coefficient of performance

Option C: both A and B

Option D: not described

Correct Answer: coefficient of performance ✔

Option A: J.K

Option B: J/K

Option C: N.m/sec

Option D: Kgm2/sec2.K

Correct Answer: J.K ✔

Option A: internal energy

Option B: heat supply

Option C: pressure

Option D: volume

Correct Answer: internal energy ✔

Option A: C.I engine

Option B: SI engine

Option C: IC engine

Option D: all the above

Correct Answer: all the above ✔

Option A: to smooth out the energy variation

Option B: to add more weight to engine to work it stable

Option C: to start engine

Option D: both A and B

Correct Answer: to smooth out the energy variation ✔

Option A: cyclic process

Option B: operated at certain temperature difference

Option C: both A and B

Option D: none of these

Correct Answer: both A and B ✔

Option A: constant

Option B: variable

Option C: zero

Option D: depends on situation

Correct Answer: zero ✔

Option A: Heat exchange process

Option B: Heating process

Option C: Isentropic process

Option D: All of the above

Correct Answer: Isentropic process ✔

Option A: isobaric

Option B: isochoric

Option C: adiabatic

Option D: isothermal

Correct Answer: adiabatic ✔

Option A: 3NaT/2R

Option B: 2NaT/3

Option C: 3RT/2Na

Option D: 3Na/2RT

Correct Answer: 3RT/2Na ✔

Option A: K = RNa

Option B: K = R/Na

Option C: K = Na/Ra

Option D: K = nRNa

Correct Answer: K = R/Na ✔

Option A: momentum

Option B: mass

Option C: velocity

Option D: kinetic energy

Correct Answer: kinetic energy ✔

Option A: 273°C at 6.11 Kpa

Option B: 273K at 61.6 Kpa

Option C: 273.16°C at 0.611 Kpa

Option D: 273.16K at 750 Kpa

Correct Answer: 273.16°C at 0.611 Kpa ✔

Option A: double

Option B: one half

Option C: four times

Option D: one fourth

Correct Answer: one half ✔

Option A: at any instant

Option B: averagely

Option C: during its operation

Option D: during one cycle

Correct Answer: during one cycle ✔

Option A: 460°C

Option B: 280°C

Option C: 360°C

Option D: 160°C

Correct Answer: 160°C ✔

Option A: 76cm 0°C

Option B: 760mm 273K

Option C: 1atm 273K

Option D: all of the above

Correct Answer: all of the above ✔

Option A: It is sum of all forms of energies associated with molecules of a system

Option B: It is a state function of a system

Option C: It is proportional to transnational K.E of the molecules

Option D: All are correct

Correct Answer: All are correct ✔

Option A: Different in different direction

Option B: Same in all direction

Option C: Same only along opposite directions

Option D: Same only along normal directions

Correct Answer: Same in all direction ✔

Option A: One degree of Fahrenheit scale

Option B: 1.8 degrees of Fahrenheit scale

Option C: 3.2 degrees of Fahrenheit scale

Option D: 2.12 degrees of Fahrenheit scale

Correct Answer: 1.8 degrees of Fahrenheit scale ✔

Option A: 40

Option B: 15.5

Option C: 542

Option D: 273

Correct Answer: 40 ✔

Option A: 37°C

Option B: 42°C

Option C: 55°C

Option D: 410°C

Correct Answer: 37°C ✔

Option A: 1.38×10-31JK-1

Option B: 3.18×10-31JK-1

Option C: 3.18×10-23JK-1

Option D: 1.38×10-23JK-1

Correct Answer: D. 1.38×10-23JK-1 ✔

Option A: Over a wide range of temperature its expansion is uniform

Option B: It does not stick to thermometer glass

Option C: It opaque to light

Option D: All of above

Correct Answer: All of above ✔

Option A: Mercury takes a long time to contract

Option B: The amount of mercury use is very small

Option C: The capillary tube has a small constriction near the bulb

Option D: The capillary tube is very narrow

Correct Answer: The capillary tube has a small constriction near the bulb ✔

Option A: rapid escape of air from a burst tyre

Option B: rapid expansion of air

Option C: conversion of water into ice in refrigerator

Option D: cloud formation in the atmosphere

Correct Answer: conversion of water into ice in refrigerator ✔

Option A: its pressure is constant

Option B: its pressure rises

Option C: its pressure falls

Option D: any of above

Correct Answer: its pressure rises ✔

Option A: isochoric processes

Option B: isobaric processes

Option C: isothermal processes

Option D: adiabatic processes

Correct Answer: isothermal processes ✔

Option A: volume

Option B: pressure

Option C: absolute temperature

Option D: time

Correct Answer: absolute temperature ✔

Option A: Boyles law

Option B: Charles law

Option C: Ideal gas law

Option D: Avagadros law

Correct Answer: Charles law ✔

Option A: 1 atmosphere

Option B: 1 Newton per square meter

Option C: 1 Pascal

Option D: data is insufficient

Correct Answer: 1 atmosphere ✔

Option A: Heat engine

Option B: Human body

Option C: Atmosphere

Option D: Laboratory

Correct Answer: Human body ✔

Option A: Frictional process

Option B: Chemical processes

Option C: Electrical processes

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Hyperbola

Option B: Parabola

Option C: A curve of any shape

Option D: A straight lime

Correct Answer: A straight lime ✔

Option A: The temperatures of water at 0? 100?C

Option B: The temperature of melting ice and boiling water at atmospheric pressure

Option C: The temperatures of ice cold and boiling water

Option D: The temperatures of frozen and boiling mercury

Correct Answer: The temperature of melting ice and boiling water at atmospheric pressure ✔

Option A: How much heat a body contains

Option B: Whether a body will feel hot or cold to touch

Option C: In which direction heat will flow between two systems

Option D: How much total absolute energy a body has

Correct Answer: In which direction heat will flow between two systems ✔

Option A: MLT

Option B: ML-1T-1

Option C: ML-1T-2

Option D: ML-2T-2

Correct Answer: ML-1T-2 ✔

Option A: The light emitting diodes

Option B: Photo diodes

Option C: Photo voltaic cell

Option D: Solar cells.

Correct Answer: Photo diodes ✔

Option A: An analogue waveform

Option B: Continuous wave form

Option C: Electronic waveform

Option D: A digital waveform

Correct Answer: A digital waveform ✔

Option A: D.C.

Option B: A.C.

Option C: Both A.C. & D.C.

Option D: None of the above

Correct Answer: A.C. ✔

Option A: n-carriers only

Option B: p-carriers only

Option C: p-carriers and n-carriers respectively

Option D: n-carriers and p-carriers respectively

Correct Answer: p-carriers and n-carriers respectively ✔

Option A: Logic gates

Option B: Boolean algebra

Option C: Amplifier gain

Option D: Logic functions

Correct Answer: Logic gates ✔