Physics Mock Test 2025 - Practice Online Quiz
Practice free online NCERT based Physics mock test for class (10, 11, 12), Engineering, Medical, Entrance Tests, Govt Recruitment Exams.
Physics Class 12 Online Mock Test Quiz based on NCERT Syllabus (2025)
Chapter-1: Electric Charges and Fields Quiz
What is the nature of the force between two like charges?
- Repulsive
- Attractive
- Zero
- Variable
The SI unit of electric field is:
- Volt
- Coulomb
- N/C
- Ohm
Chapter-2: Electrostatic Potential and Capacitance Quiz
What is the potential at a point due to a point charge at infinity?
- 1 V
- Infinity
- –1 V
- Zero
Capacitance of a parallel plate capacitor increases if:
- Plate area decreases
- Distance between plates decreases
- Dielectric constant decreases
- Charge is reduced
Chapter-3: Current Electricity Quiz
Ohm’s law states the relation between:
- Resistance and capacitance
- Current and power
- Voltage and current
- Voltage and resistance
The SI unit of resistivity is:
- Ohm
- Ohm-meter
- Volt-ampere
- Siemens
Chapter-4: Moving Charges and Magnetism Quiz
The magnetic field inside a long straight solenoid is:
- Non-uniform
- Zero
- Uniform
- Maximum at the ends
A current-carrying conductor experiences maximum force in a magnetic field when angle between current and field is:
- 0°
- 180°
- 90°
- 45°
Chapter-5: Magnetism and Matter Quiz
A freely suspended bar magnet aligns itself:
- Randomly
- Along north-south direction
- East-west direction
- Vertically
SI unit of magnetic moment is:
- Weber
- A·m²
- Tesla
- Henry
Chapter-6: Electromagnetic Induction Quiz
Faraday’s law is associated with:
- Static charges
- Current-carrying wire
- Changing magnetic field
- Electrostatic force
Lenz’s Law is based on the principle of:
- Energy conservation
- Force conservation
- Conservation of energy
- Momentum conservation
Chapter-7: Alternating Current Quiz
The average value of AC over one complete cycle is:
- Zero
- Maximum
- RMS
- Peak value
In a pure resistor, the voltage and current are:
- Out of phase
- In phase
- 90° out of phase
- Opposite phase
Chapter-8: Electromagnetic Waves Quiz
Which electromagnetic wave has the shortest wavelength?
- Microwaves
- Gamma rays
- Infrared
- Radio waves
EM waves are:
- Transverse
- Longitudinal
- Mechanical
- Only magnetic
Chapter-9: Ray Optics and Optical Instruments Quiz
Which mirror always forms a virtual and erect image?
- Concave
- Convex
- Plane
- Combination of concave and convex
The power of a lens is measured in:
- Meters
- Dioptres
- Focal units
- Magnification
Chapter-10: Wave Optics Quiz
Young’s double slit experiment is based on the principle of:
- Reflection
- Interference
- Diffraction
- Polarisation
Which phenomenon shows the wave nature of light?
- Reflection
- Refraction
- Interference
- Photoelectric effect
Chapter-11: Dual Nature of Radiation and Matter Quiz
Photoelectric effect supports the concept of:
- Wave nature
- Particle nature
- Elastic collision
- Diffraction
Which quantity is conserved in the photoelectric effect?
- Only energy
- Energy and momentum
- Only momentum
- Charge only
Chapter-12: Atoms Quiz
In the Bohr model, electrons revolve in:
- Elliptical orbits
- Circular orbits with quantised energy
- Random orbits
- Helical paths
The spectral lines of hydrogen are explained by:
- Thomson model
- Rutherford model
- Bohr’s model
- Dalton’s model
Chapter-13: Nuclei Quiz
Mass number is equal to:
- Number of protons + neutrons
- Only neutrons
- Only protons
- Protons – electrons
Which of the following is not a type of radioactive decay?
- Alpha
- Beta
- Gamma
- Delta
Chapter-14: Semiconductor Electronics Quiz
Which of the following is a semiconductor?
- Copper
- Aluminium
- Silicon
- Iron
A p-n junction diode conducts current when:
- Reverse biased
- Forward biased
- Disconnected
- Voltage is zero
Chapter-15: Communication Systems Quiz
The process of superimposing a message signal on a carrier wave is called:
- Detection
- Modulation
- Transmission
- Amplification
Which frequency range is used for audio signals?
- 20 Hz to 20 kHz
- 1 kHz to 1 MHz
- Above 1 GHz
- 0.1 Hz to 10 Hz
Physics Class 11 Online Mock Test Quiz based on NCERT Syllabus (2025)
Chapter-1: Physical World Quiz
Which of the following is not a fundamental force in nature?
- Gravitational force
- Electromagnetic force
- Frictional force
- Weak nuclear force
Physics is based on the study of:
- Nature and its laws
- History of science
- Inventions of instruments
- Elements and compounds
Chapter-2: Units and Measurements Quiz
Which of the following pairs is not a correct SI unit and its quantity?
- Kelvin – Temperature
- Meter – Length
- Ampere – Resistance
- Second – Time
If the length and time period of a pendulum are increased by 4 times, the new time period becomes:
- 2 times the original
- 4 times the original
- 16 times the original
- 1/2 times the original
Chapter-3: Motion in a Straight Line Quiz
If a body starts from rest, the distance travelled in time \( t \) is proportional to:
- \( t \)
- \( t^2 \)
- \( \sqrt{t} \)
- \( \frac{1}{t} \)
The area under a velocity-time graph represents:
- Acceleration
- Speed
- Displacement
- Distance
Chapter-4: Motion in a Plane Quiz
The path followed by a projectile is:
- Circle
- Line
- Parabola
- Ellipse
If a vector has zero magnitude, it is called a:
- Null vector
- Unit vector
- Equal vector
- Zero scalar
Chapter-5: Laws of Motion Quiz
Which law explains the relation \( F = ma \)?
- Newton’s First Law
- Newton’s Second Law
- Newton’s Third Law
- Law of Inertia
Action and reaction forces:
- Act on the same body
- Act on different bodies
- Have unequal magnitudes
- Act in the same direction
Chapter-6: Work, Energy and Power Quiz
Work done is said to be positive when:
- The force is perpendicular to displacement
- The body is at rest
- The force and displacement are in the same direction
- None of these
The unit of power is:
- Joule
- Watt
- Newton
- Pascal
Chapter-7: System of Particles and Rotational Motion Quiz
The point where the whole mass of a body is assumed to be concentrated is:
- Centre of mass
- Centroid
- Centre of gravity
- Centre of curvature
The moment of inertia of a rod about its centre is proportional to:
- \( ML^2 \)
- \( \frac{M}{L^2} \)
- \( \frac{M^2}{L} \)
- \( \sqrt{ML} \)
Chapter-8: Gravitation Quiz
The value of acceleration due to gravity on Earth is approximately:
- 8.9 m/s²
- 9.8 m/s²
- 10.5 m/s²
- 11.2 m/s²
Gravitational force between two masses \( m_1 \) and \( m_2 \) is given by:
- \( \frac{G(m_1 + m_2)}{r^2} \)
- \( \frac{m_1 m_2}{G r^2} \)
- \( \frac{G m_1 m_2}{r^2} \)
- \( G m_1 m_2 r^2 \)
Chapter-9: Mechanical Properties of Solids Quiz
What is the relation between stress and strain in the elastic limit called?
- Hooke’s second law
- Hooke’s Law
- Newton’s Law
- Young’s Law
If the length of a wire is doubled and its radius is halved, then the new Young’s modulus will be:
- Twice the original
- Half the original
- Same as original
- Four times the original
Chapter-10: Mechanical Properties of Fluids Quiz
The SI unit of pressure is:
- dyne/cm²
- atm
- bar
- Pascal
According to Bernoulli's principle, when the speed of fluid increases, the pressure:
- Increases
- Remains constant
- Decreases
- Becomes zero
Chapter-11: Thermal Properties of Matter Quiz
Which of the following expands the most on heating?
- Solids
- Liquids
- Gases
- Metals
Which thermometer uses the concept of thermal expansion?
- Mercury thermometer
- Gas thermometer
- Digital thermometer
- Both mercury and alcohol thermometers
Chapter-12: Thermodynamics Quiz
Which law of thermodynamics introduces the concept of internal energy?
- Zeroeth Law
- First Law
- Second Law
- Third Law
In a cyclic process, the net work done by the system is equal to:
- Zero
- Internal energy
- Heat supplied
- Change in pressure
Chapter-13: Kinetic Theory Quiz
According to kinetic theory, the pressure exerted by a gas is due to:
- Electrostatic force
- Collisions of molecules with walls
- Temperature difference
- Magnetic field
Which of the following is NOT an assumption of kinetic theory?
- Gas consists of molecules in random motion
- Molecules obey Newton’s laws
- Collisions are elastic
- Intermolecular forces are strong
Chapter-14: Oscillations Quiz
The time period of a simple pendulum is given by \( T = 2\pi \sqrt{\frac{L}{g}} \). What will happen to the period if the length is quadrupled?
- It becomes double
- It becomes twice as long
- It becomes four times
- It becomes half
In simple harmonic motion, the acceleration is:
- Constant
- Zero
- Directly proportional to displacement and directed opposite to it
- Always positive
Chapter-15: Waves Quiz
Which of the following types of waves requires a medium to propagate?
- Light waves
- Sound waves
- Radio waves
- X-rays
The speed of a wave on a string is given by \( v = \sqrt{\frac{T}{\mu}} \). What does \( \mu \) represent?
- Tension
- Amplitude
- Mass per unit length
- Frequency
Physics Class 10 Online Mock Test Quiz based on NCERT Syllabus (2025)
Chapter-1: Light – Reflection and Refraction
Which of the following is true for the image formed by a plane mirror?
- It is real and inverted
- It is virtual and laterally inverted
- It is magnified and real
- It is diminished and upright
If the angle of incidence is 40°, what will be the angle of reflection?
- 90°
- 20°
- 40°
- 50°
Chapter-2: The Human Eye and the Colourful World
The sky appears blue because:
- Blue light is absorbed by the atmosphere
- Blue light is scattered more than other colours
- Red light is scattered more than other colours
- Sun emits only blue light
Which part of the eye controls the amount of light entering it?
- Retina
- Iris
- Cornea
- Lens
Chapter-3: Electricity
What is the SI unit of electric current?
- Ohm
- Ampere
- Volt
- Coulomb
A wire of resistance 4Ω is doubled in length. What will be its new resistance?
- 2Ω
- 8Ω
- 1Ω
- 4Ω
Chapter-4: Magnetic Effects of Electric Current
The magnetic field inside a long straight current-carrying solenoid is:
- Non-uniform and weak
- Uniform and strong
- Zero
- Inversely proportional to current
What is the function of a fuse in an electric circuit?
- To increase current
- To convert AC to DC
- To protect the circuit from overloading
- To reduce voltage
Chapter-5: Sources of Energy
Which of the following is a non-renewable source of energy?
- Solar energy
- Wind energy
- Coal
- Hydroelectric energy
Which of the following is an eco-friendly energy source?
- Petrol
- Solar power
- Natural gas
- Diesel
List of Govt Recruitment and Entrance Exam-wise Physics Quizzes (Coming Soon)
| Exams | Subject | |
|---|---|---|
| Engineering Entrance exams | JEE Main, JEE Advanced, VITEEE, SRMJEEE, BITSAT, MET, COMEDK UGET, AP EAMCET, KIITEE, MHTCET, WBJEE | Physics |
| Medical Entrance exams | NEET, AIIMS | Physics |
| Law Entrance exams | CLAT, AILET | Physics |
| Design Entrance exams | NIFT, NID, AIEED | Physics |
| Hotel Management exams | NCHMCT JEE | Physics |
| International & Miscellaneous exams | SAT | Physics |
| SSC & Clerical Government exams | SSC CHSL, SSC MTS, SSC GD, SSC Stenographer, UDC, LDC, PA, DEO, SA | Physics |
| Defense & Armed Forces exams | Indian Army, Indian Navy, Indian Coast Guard, NDA, AFCAT, UPSC CAPF | Physics |
| Security Forces exams | BSF, CRPF, SSB, ITBP, CISF | Physics |
| Railway Recruitment exams | RRB ALP, RRB Group D, Railways Clerks, Railways Constables | Physics |
| Public Service Commission exams | State PSC Exams, National Testing Agency (NTA) | Physics |
Language-wise Physics Quizzes 2025 (Coming Soon)
| Language | Subject | States |
|---|---|---|
| Hindi | Physics | Bihar, Chhattisgarh, Haryana, Himachal Pradesh, Jharkhand, Madhya Pradesh, Rajasthan, Uttar Pradesh, Uttarakhand, Delhi, Dadra & Nagar Haveli and Daman & Diu, Jammu and Kashmir, Andaman & Nicobar Island |
| English | Physics | Arunachal Pradesh, Meghalaya, Nagaland, Sikkim, Chandigarh, Mizoram, Jammu and Kashmir, Ladakh, Andaman & Nicobar Island |
| Telugu | Physics | Andhra Pradesh, Telangana |
| Assamese | Physics | Assam |
| Konkani, Gujarati | Physics | Goa, Dadra & Nagar Haveli and Daman & Diu |
| Kannada | Physics | Karnataka |
| Malayalam | Physics | Kerala, Lakshadweep |
| Marathi | Physics | Maharashtra, Dadra & Nagar Haveli and Daman & Diu |
| Meiteilon (Manipuri) | Physics | Manipur |
| Mizo | Physics | Mizoram |
| Odia | Physics | Odisha |
| Punjabi | Physics | Punjab |
| Tamil | Physics | Tamil Nadu, Pondicherry |
| Urdu | Physics | Telangana, Jammu and Kashmir |
| Bengali | Physics | West Bengal, Tripura |
| Kokborok | Physics | Tripura |
| Kashmiri, Dogri | Physics | Jammu and Kashmir |
| Ladakhi, Purgi | Physics | Ladakh |
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