200 General Physics GK MCQs
🔹 Basics of Physics (1–20)
- Who is known as the father of physics?
A) Newton
B) Einstein
C) Galileo Galilei
D) Bohr
Answer: C - SI unit of force is?
A) Joule
B) Watt
C) Newton
D) Pascal
Answer: C - SI unit of energy is?
A) Joule
B) Watt
C) Newton
D) Volt
Answer: A - Speed = ?
A) Distance × Time
B) Distance / Time
C) Time / Distance
D) Force / Mass
Answer: B - Unit of power is?
A) Watt
B) Joule
C) Newton
D) Pascal
Answer: A - SI unit of pressure?
A) Pascal
B) Joule
C) Watt
D) Newton
Answer: A - Gravity is caused by?
A) Magnetism
B) Mass
C) Light
D) Heat
Answer: B - SI unit of electric current?
A) Volt
B) Ampere
C) Ohm
D) Watt
Answer: B - Speed of light is?
A) 3×10⁸ m/s
B) 3×10⁶ m/s
C) 3×10⁵ m/s
D) 3×10⁷ m/s
Answer: A - SI unit of frequency?
A) Hertz
B) Joule
C) Watt
D) Newton
Answer: A - Work is measured in?
A) Watt
B) Joule
C) Newton
D) Pascal
Answer: B - Instrument to measure temperature?
A) Barometer
B) Thermometer
C) Ammeter
D) Speedometer
Answer: B - SI unit of temperature?
A) Celsius
B) Kelvin
C) Fahrenheit
D) Joule
Answer: B - Force = ?
A) Mass × Acceleration
B) Mass / Speed
C) Energy / Time
D) Pressure × Area
Answer: A - SI unit of electric resistance?
A) Ohm
B) Volt
C) Watt
D) Ampere
Answer: A - Instrument used to measure current?
A) Voltmeter
B) Ammeter
C) Barometer
D) Thermometer
Answer: B - Instrument used to measure pressure of air?
A) Thermometer
B) Barometer
C) Ammeter
D) Speedometer
Answer: B - Acceleration due to gravity on Earth is?
A) 9.8 m/s²
B) 8.9 m/s²
C) 10 m/s²
D) 7.8 m/s²
Answer: A - Light travels in?
A) Straight line
B) Curve
C) Circle
D) Zigzag
Answer: A - Sound needs?
A) Vacuum
B) Medium
C) Light
D) Gravity
Answer: B
🔹 Heat, Light & Sound (21–40)
- Speed of sound is highest in?
A) Air
B) Water
C) Vacuum
D) Steel
Answer: D - Sound cannot travel in?
A) Air
B) Water
C) Solid
D) Vacuum
Answer: D - Reflection of light obeys?
A) Newton law
B) Ohm law
C) Snell law
D) Kirchhoff law
Answer: C - Mirror used in vehicles?
A) Plane mirror
B) Convex mirror
C) Concave mirror
D) None
Answer: B - Rainbow is due to?
A) Reflection
B) Refraction
C) Dispersion
D) Absorption
Answer: C - SI unit of wavelength?
A) Meter
B) Hertz
C) Joule
D) Watt
Answer: A - Frequency is measured in?
A) Meter
B) Hertz
C) Newton
D) Joule
Answer: B - Light travels fastest in?
A) Air
B) Water
C) Vacuum
D) Glass
Answer: C - Image formed in plane mirror is?
A) Real
B) Virtual
C) Inverted
D) Enlarged
Answer: B - Speed of light in vacuum is?
A) 3×10⁸ m/s
B) 3×10⁶ m/s
C) 3×10⁵ m/s
D) 3×10⁷ m/s
Answer: A - Unit of intensity of light?
A) Candela
B) Watt
C) Joule
D) Newton
Answer: A - Sound waves are?
A) Transverse
B) Longitudinal
C) Electromagnetic
D) Light waves
Answer: B - Echo is due to?
A) Reflection of sound
B) Refraction
C) Absorption
D) Diffraction
Answer: A - Ultrasound frequency is above?
A) 20 Hz
B) 20 kHz
C) 2 Hz
D) 200 Hz
Answer: B - Human audible range is?
A) 20 Hz – 20 kHz
B) 10–100 Hz
C) 1–10 Hz
D) 50–500 Hz
Answer: A - Which travels faster?
A) Sound
B) Light
C) Both equal
D) None
Answer: B - Light is?
A) Mechanical wave
B) Electromagnetic wave
C) Sound wave
D) Water wave
Answer: B - Laser light is?
A) Random
B) Coherent
C) Scattered
D) Absorbed
Answer: B - Lens used in microscope?
A) Convex
B) Concave
C) Plane
D) Cylindrical
Answer: A - Defect of vision corrected by convex lens?
A) Myopia
B) Hypermetropia
C) Astigmatism
D) Night blindness
Answer: B
🔹 Electricity & Magnetism (41–70)
- Unit of electric charge?
A) Volt
B) Coulomb
C) Ampere
D) Ohm
Answer: B - Electric current is flow of?
A) Protons
B) Neutrons
C) Electrons
D) Photons
Answer: C - Ohm’s law relates?
A) V=IR
B) P=VI
C) F=ma
D) E=mc²
Answer: A - Unit of voltage?
A) Volt
B) Watt
C) Ohm
D) Joule
Answer: A - Magnetic field is measured in?
A) Tesla
B) Newton
C) Watt
D) Joule
Answer: A - Device converting electrical energy to mechanical?
A) Motor
B) Generator
C) Transformer
D) Battery
Answer: A - Device converting mechanical to electrical energy?
A) Motor
B) Generator
C) Battery
D) Heater
Answer: B - Resistance unit is?
A) Ohm
B) Volt
C) Watt
D) Ampere
Answer: A - Current measured by?
A) Voltmeter
B) Ammeter
C) Thermometer
D) Barometer
Answer: B - Electricity is measured in?
A) Ampere
B) Joule
C) Watt
D) Ohm
Answer: A
Electricity & Magnetism (51–70)
- SI unit of electric charge is?
A) Volt
B) Coulomb
C) Ampere
D) Ohm
Answer: B - Electric current is flow of?
A) Protons
B) Electrons
C) Neutrons
D) Atoms
Answer: B - Device that converts chemical energy to electrical energy?
A) Motor
B) Battery
C) Generator
D) Transformer
Answer: B - Ohm’s law is?
A) V = IR
B) F = ma
C) E = mc²
D) P = VI
Answer: A - Unit of electric potential difference?
A) Watt
B) Volt
C) Ohm
D) Ampere
Answer: B - Electric resistance is measured in?
A) Volt
B) Ohm
C) Joule
D) Watt
Answer: B - Instrument used to measure current?
A) Voltmeter
B) Ammeter
C) Barometer
D) Thermometer
Answer: B - Instrument used to measure voltage?
A) Ammeter
B) Voltmeter
C) Speedometer
D) Hygrometer
Answer: B - Electric power unit is?
A) Watt
B) Joule
C) Newton
D) Volt
Answer: A - Transformer works on?
A) DC
B) AC
C) Both
D) None
Answer: B - Magnet has how many poles?
A) 1
B) 2
C) 3
D) 4
Answer: B - Earth behaves like a?
A) Conductor
B) Magnet
C) Insulator
D) Semiconductor
Answer: B - SI unit of magnetic field?
A) Tesla
B) Newton
C) Joule
D) Watt
Answer: A - Electric generator converts?
A) Electrical to mechanical
B) Mechanical to electrical
C) Heat to light
D) Light to sound
Answer: B - Motor converts?
A) Mechanical to electrical
B) Electrical to mechanical
C) Heat to electricity
D) Light to heat
Answer: B - Fuse is used for?
A) Increasing voltage
B) Protecting circuits
C) Storing energy
D) Generating current
Answer: B - Short circuit causes?
A) No current
B) Excess current
C) No voltage
D) No resistance
Answer: B - Current in household is?
A) AC
B) DC
C) Both
D) None
Answer: A - Battery produces?
A) AC
B) DC
C) Heat
D) Light
Answer: B - Electricity flows due to?
A) Pressure
B) Voltage difference
C) Mass
D) Heat
Answer: B
🔹 Heat & Thermodynamics (71–85)
- Heat is a form of?
A) Mass
B) Energy
C) Force
D) Pressure
Answer: B - SI unit of heat?
A) Watt
B) Joule
C) Newton
D) Volt
Answer: B - Boiling point of water?
A) 0°C
B) 50°C
C) 100°C
D) 150°C
Answer: C - Freezing point of water?
A) 0°C
B) 10°C
C) 100°C
D) 50°C
Answer: A - Heat transfer without medium?
A) Conduction
B) Convection
C) Radiation
D) Diffusion
Answer: C - Heat transfer in solids?
A) Conduction
B) Convection
C) Radiation
D) Reflection
Answer: A - Heat transfer in liquids?
A) Conduction
B) Convection
C) Radiation
D) Refraction
Answer: B - Thermometer measures?
A) Pressure
B) Temperature
C) Force
D) Energy
Answer: B - Absolute zero temperature is?
A) 0 K
B) 100 K
C) 273 K
D) 373 K
Answer: A - Water has maximum density at?
A) 0°C
B) 4°C
C) 100°C
D) 10°C
Answer: B - Latent heat is related to?
A) Temperature change
B) Change of state
C) Force
D) Pressure
Answer: B - Unit of latent heat?
A) J/kg
B) Watt
C) Newton
D) Joule
Answer: A - Steam is?
A) Solid
B) Liquid
C) Gas
D) Plasma
Answer: C - Dry ice is solid form of?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
Answer: B - Heat flows from?
A) Cold to hot
B) Hot to cold
C) Both ways
D) No flow
Answer: B
🔹 Light, Sound & Modern Physics (86–100)
- Light is a?
A) Mechanical wave
B) Electromagnetic wave
C) Sound wave
D) Water wave
Answer: B - Speed of light is?
A) 3×10⁸ m/s
B) 3×10⁶ m/s
C) 3×10⁵ m/s
D) 3×10⁷ m/s
Answer: A - Rainbow is due to?
A) Reflection
B) Refraction
C) Dispersion
D) Absorption
Answer: C - Mirror used in vehicles?
A) Plane
B) Convex
C) Concave
D) None
Answer: B - Image in plane mirror is?
A) Real
B) Virtual
C) Inverted
D) Enlarged
Answer: B - Sound cannot travel in?
A) Solid
B) Liquid
C) Gas
D) Vacuum
Answer: D - Human hearing range is?
A) 20 Hz–20 kHz
B) 10–100 Hz
C) 1–10 Hz
D) 100–1000 Hz
Answer: A - Echo is due to?
A) Refraction
B) Reflection
C) Absorption
D) Diffusion
Answer: B - Ultrasound frequency is above?
A) 20 Hz
B) 20 kHz
C) 2 kHz
D) 200 Hz
Answer: B - Laser light is?
A) Scattered
B) Coherent
C) Random
D) Diffused
Answer: B - Unit of frequency?
A) Hertz
B) Joule
C) Watt
D) Newton
Answer: A - Electric charge unit?
A) Volt
B) Coulomb
C) Ampere
D) Ohm
Answer: B - Proton has?
A) Positive charge
B) Negative charge
C) No charge
D) Neutral
Answer: A - Electron has?
A) Positive charge
B) Negative charge
C) No charge
D) Neutral
Answer: B - Neutron has?
A) Positive charge
B) Negative charge
C) No charge
D) Double charge
Answer: C
otion, Force & Work (101–130)
- Newton’s First Law is also called?
A) Law of motion
B) Law of inertia
C) Law of force
D) Law of energy
Answer: B - SI unit of momentum?
A) kg m/s
B) Newton
C) Joule
D) Watt
Answer: A - Force = mass × ?
A) Velocity
B) Acceleration
C) Distance
D) Time
Answer: B - Work done = ?
A) Force × Distance
B) Mass × Velocity
C) Power × Time
D) Force / Distance
Answer: A - Unit of work is?
A) Joule
B) Watt
C) Newton
D) Pascal
Answer: A - Power is rate of?
A) Work
B) Force
C) Energy
D) Mass
Answer: A - SI unit of power?
A) Watt
B) Joule
C) Newton
D) Volt
Answer: A - Friction always acts in direction?
A) Same as motion
B) Opposite to motion
C) Vertical
D) Random
Answer: B - Law of conservation of energy was given by?
A) Newton
B) Einstein
C) Joule
D) Dalton
Answer: C - Inertia depends on?
A) Speed
B) Mass
C) Force
D) Distance
Answer: B - Momentum = ?
A) Mass × Velocity
B) Force × Time
C) Work × Time
D) Energy × Time
Answer: A - SI unit of acceleration?
A) m/s²
B) m/s
C) Newton
D) Joule
Answer: A - Weight is measured in?
A) Newton
B) Joule
C) Watt
D) Ohm
Answer: A - Weight depends on?
A) Mass only
B) Gravity
C) Speed
D) Volume
Answer: B - Mass remains same but weight changes due to?
A) Temperature
B) Gravity
C) Pressure
D) Time
Answer: B - Free fall acceleration is?
A) 9.8 m/s²
B) 10 m/s²
C) 8.9 m/s²
D) 7.5 m/s²
Answer: A - Newton’s Second Law relates?
A) Force and acceleration
B) Energy and mass
C) Time and speed
D) Work and power
Answer: A - Newton’s Third Law states?
A) Every action has equal and opposite reaction
B) Energy is constant
C) Mass is constant
D) Force is zero
Answer: A - Unit of impulse?
A) N·s
B) Joule
C) Watt
D) Newton
Answer: A - Velocity is?
A) Speed with direction
B) Speed only
C) Distance/time
D) Force/time
Answer: A - Scalar quantity example?
A) Force
B) Velocity
C) Speed
D) Acceleration
Answer: C - Vector quantity example?
A) Speed
B) Distance
C) Force
D) Time
Answer: C - SI unit of distance?
A) Meter
B) Newton
C) Joule
D) Watt
Answer: A - Displacement is?
A) Total path
B) Shortest path
C) Random path
D) Circular path
Answer: B - Speed = ?
A) Distance/time
B) Force/mass
C) Energy/time
D) Work/time
Answer: A - Uniform motion means?
A) Constant speed
B) Changing speed
C) No motion
D) Random motion
Answer: A - Acceleration is change in?
A) Speed
B) Force
C) Mass
D) Energy
Answer: A - Retardation means?
A) Increase in speed
B) Decrease in speed
C) No motion
D) Constant speed
Answer: B - Unit of torque?
A) N·m
B) Joule
C) Watt
D) Pascal
Answer: A - Centre of gravity is point where?
A) Mass is zero
B) Weight acts
C) Force is zero
D) Speed is zero
Answer: B
🔹 Heat & Thermodynamics (131–150)
- Heat flows from?
A) Cold to hot
B) Hot to cold
C) Both ways
D) No flow
Answer: B - Unit of heat?
A) Joule
B) Watt
C) Newton
D) Pascal
Answer: A - Heat is a form of?
A) Energy
B) Mass
C) Force
D) Pressure
Answer: A - Boiling point of water?
A) 100°C
B) 0°C
C) 50°C
D) 200°C
Answer: A - Freezing point of water?
A) 0°C
B) 100°C
C) 50°C
D) 10°C
Answer: A - Heat transfer by direct contact?
A) Conduction
B) Convection
C) Radiation
D) Reflection
Answer: A - Heat transfer in liquids/gases?
A) Conduction
B) Convection
C) Radiation
D) Diffusion
Answer: B - Heat transfer without medium?
A) Conduction
B) Convection
C) Radiation
D) Diffusion
Answer: C - SI unit of temperature?
A) Kelvin
B) Celsius
C) Fahrenheit
D) Joule
Answer: A - Absolute zero temperature is?
A) 0 K
B) 0°C
C) 100°C
D) -273°C
Answer: A - Thermometer used for body?
A) Clinical
B) Laboratory
C) Digital
D) Barometer
Answer: A - Expansion of solids on heating?
A) Increase
B) Decrease
C) No change
D) Zero
Answer: A - Water has maximum density at?
A) 0°C
B) 4°C
C) 100°C
D) 10°C
Answer: B - Latent heat is heat during?
A) Temperature change
B) State change
C) Motion
D) Pressure change
Answer: B - Unit of latent heat?
A) J/kg
B) Watt
C) Newton
D) Pascal
Answer: A - Ice melts into water by?
A) Freezing
B) Melting
C) Boiling
D) Condensation
Answer: B - Water vapor changes to liquid is?
A) Evaporation
B) Condensation
C) Sublimation
D) Fusion
Answer: B - Steam is?
A) Solid
B) Liquid
C) Gas
D) Plasma
Answer: C - Dry ice is?
A) Solid CO₂
B) Solid O₂
C) Solid H₂
D) Solid N₂
Answer: A - Heat energy is measured in?
A) Joule
B) Watt
C) Newton
D) Volt
Answer: A
🔹 Waves, Light & Modern Physics (151–200)
- Light is a?
A) Mechanical wave
B) Electromagnetic wave
C) Sound wave
D) Water wave
Answer: B - Speed of light in vacuum?
A) 3×10⁸ m/s
B) 3×10⁶ m/s
C) 3×10⁵ m/s
D) 3×10⁷ m/s
Answer: A - Convex lens is used for?
A) Myopia
B) Hypermetropia
C) Both
D) None
Answer: B - Concave lens corrects?
A) Hypermetropia
B) Myopia
C) Astigmatism
D) Night blindness
Answer: B - Rainbow formation is due to?
A) Reflection
B) Refraction
C) Dispersion
D) Absorption
Answer: C - Unit of frequency?
A) Hertz
B) Joule
C) Watt
D) Newton
Answer: A - Sound cannot travel in?
A) Solid
B) Liquid
C) Gas
D) Vacuum
Answer: D - Echo is caused by?
A) Refraction
B) Reflection
C) Diffusion
D) Absorption
Answer: B - Human hearing range?
A) 20 Hz–20 kHz
B) 10–100 Hz
C) 100–1000 Hz
D) 1–10 Hz
Answer: A - Ultrasound frequency is above?
A) 20 Hz
B) 20 kHz
C) 2 kHz
D) 200 Hz
Answer: B - Laser light is?
A) Scattered
B) Coherent
C) Random
D) Diffused
Answer: B - Mirror used in vehicles?
A) Plane
B) Convex
C) Concave
D) Cylindrical
Answer: B - Image in plane mirror is?
A) Real
B) Virtual
C) Inverted
D) Enlarged
Answer: B - SI unit of wavelength?
A) Meter
B) Hertz
C) Joule
D) Watt
Answer: A - Electric charge unit?
A) Coulomb
B) Volt
C) Ampere
D) Ohm
Answer: A - Electric current is flow of?
A) Protons
B) Electrons
C) Neutrons
D) Atoms
Answer: B - Ohm’s law:
A) V=IR
B) P=VI
C) F=ma
D) E=mc²
Answer: A - Battery converts?
A) Chemical to electrical
B) Electrical to mechanical
C) Heat to light
D) Light to sound
Answer: A - Magnet has how many poles?
A) 1
B) 2
C) 3
D) 4
Answer: B - Earth acts like?
A) Magnet
B) Conductor
C) Insulator
D) Semiconductor
Answer: A - Unit of electric resistance?
A) Ohm
B) Watt
C) Volt
D) Joule
Answer: A - Electric power unit?
A) Watt
B) Joule
C) Newton
D) Ampere
Answer: A - Transformer works on?
A) AC
B) DC
C) Both
D) None
Answer: A - Nuclear energy is from?
A) Atoms
B) Molecules
C) Ions
D) Waves
Answer: A - Atomic number = number of?
A) Neutrons
B) Protons
C) Electrons + neutrons
D) Molecules
Answer: B - Einstein gave theory of?
A) Relativity
B) Gravity
C) Motion
D) Waves
Answer: A - E=mc² relates?
A) Mass & energy
B) Force & speed
C) Heat & light
D) Work & power
Answer: A - Radioactivity discovered by?
A) Becquerel
B) Newton
C) Bohr
D) Dalton
Answer: A - Nuclear reactor produces?
A) Electricity
B) Heat only
C) Sound
D) Light
Answer: A - Unit of radioactive activity?
A) Becquerel
B) Watt
C) Joule
D) Newton
Answer: A - Neutron has?
A) Positive charge
B) Negative charge
C) No charge
D) Double charge
Answer: C - Proton charge is?
A) Positive
B) Negative
C) Neutral
D) Zero
Answer: A - Electron charge is?
A) Positive
B) Negative
C) Neutral
D) Zero
Answer: B - Light year is unit of?
A) Time
B) Distance
C) Speed
D) Energy
Answer: B - Black hole has?
A) No gravity
B) Strong gravity
C) Light emission
D) No mass
Answer: B - Telescope is used for?
A) Microscopic study
B) Space observation
C) Sound study
D) Heat study
Answer: B - Microscope is used for?
A) Stars
B) Small objects
C) Planets
D) Waves
Answer: B - Gravity was discovered by?
A) Newton
B) Einstein
C) Galileo
D) Bohr
Answer: A - Apple falling inspired law of?
A) Gravity
B) Motion
C) Energy
D) Light
Answer: A - Satellite stays in orbit due to?
A) Gravity
B) Magnetism
C) Friction
D) Heat
Answer: A - Escape velocity is for?
A) Leaving Earth
B) Entering Earth
C) Sound travel
D) Light speed
Answer: A - Rocket works on?
A) Newton 3rd law
B) Gravity law
C) Ohm law
D) Boyle law
Answer: A - Space shuttle uses?
A) Fuel combustion
B) Electricity only
C) Solar wind
D) Magnetism
Answer: A - Sun is source of?
A) Light & heat
B) Sound
C) Magnetism only
D) Gravity only
Answer: A - Solar energy comes from?
A) Fusion
B) Fission
C) Combustion
D) Oxidation
Answer: A - Moon has?
A) No gravity
B) Less gravity
C) More gravity
D) Same gravity as Earth
Answer: B - Astronauts feel weightless due to?
A) Free fall
B) High gravity
C) No motion
D) Friction
Answer: A - Artificial satellite used for?
A) Communication
B) Cooking
C) Lighting
D) Cooling
Answer: A - Hubble is a?
A) Telescope
B) Rocket
C) Satellite phone
D) Radar
Answer: A - Universe is expanding was discovered by?
A) Hubble
B) Newton
C) Einstein
D) Galileo
Answer: A