Check how ready you are with our Class 11 Physics online mock tests, made for the CBSE 2026-27 session. These free tests give you your score right after you submit, so you know exactly where you stand in Physics.
Class 11 Physics Online Practice, Chapter-wise
Each chapter of Physics in Class 11 has its own test below, built around the current CBSE 2026-27 marking scheme. Click to begin instantly. No login, and no limit on retakes.
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Class 11 Physics: Concept Navigators & Chapter Diagnostic Tests Select any chapter below to use real-time physics calculators and solve high-yield CBSE diagnostic questions with verified explanations. Interactive Concept Tool: Significant Figures Counter Q1.Which of these is a fundamental (base) SI unit? Answer: (c) Kilogram. Kilogram (mass) is one of the seven SI base units; Newton, Joule, and Watt are derived units.
Q2.The dimensional formula for force is: Answer: (a) [MLT-2]. Force = mass × acceleration = M × (LT-2) = [MLT-2].
Q3.Zeros between two non-zero digits in a measurement are: Answer: (a) Always significant. E.g., in 1005, both zeros between the 1 and 5 are significant, giving 4 significant figures.
Interactive Concept Tool: Kinematics Calculator (v = u + at) Q1.A body moving with uniform velocity has: Answer: (b) Zero acceleration. Uniform velocity means speed and direction are constant, so the rate of change of velocity (acceleration) is zero.
Q2.On a velocity-time graph, the area under the curve represents: Answer: (c) Displacement. Since velocity × time = displacement, the area enclosed under a v-t graph gives the displacement over that interval.
Q3.A ball is thrown vertically upward. At the highest point of its motion, its: Answer: (a) Velocity is zero but acceleration is g (downward). Gravity continues to act on the ball throughout its flight, even momentarily at the peak where velocity is zero.
Interactive Concept Tool: Resultant of Two Vectors Q1.A projectile is fired at an angle of 45° to the horizontal. Its horizontal range is: Answer: (a) Maximum, for a given launch speed. Range R = u²sin(2θ)/g is maximum when sin(2θ) = 1, i.e., θ = 45°.
Q2.Two vectors are said to be orthogonal (perpendicular) when the angle between them is: Answer: (b) 90°. At 90°, the dot product of the two vectors is zero, confirming perpendicularity.
Q3.In uniform circular motion, the acceleration of the particle is directed: Answer: (c) Toward the centre of the circle. This is called centripetal acceleration, with magnitude v²/r, always directed radially inward.
Interactive Concept Tool: Force Calculator (F = ma) Q1.Newton's First Law of Motion is also known as the law of: Answer: (b) Inertia. It states a body remains at rest or in uniform motion unless acted upon by an external unbalanced force.
Q2.According to Newton's Third Law, for every action there is: Answer: (a) An equal and opposite reaction. Action and reaction forces act on two different bodies simultaneously and are equal in magnitude but opposite in direction.
Q3.The law of conservation of linear momentum follows directly from: Answer: (c) Newton's Second and Third Laws together. In an isolated system, internal action-reaction pairs cancel, so total momentum before and after an interaction remains constant.
Interactive Concept Tool: Kinetic Energy Calculator Q1.The SI unit of power is: Answer: (b) Watt. Power = Work/Time, measured in watts (1 W = 1 J/s); Joule is the unit of work/energy.
Q2.A collision in which kinetic energy is conserved is called: Answer: (a) Elastic collision. Both momentum and kinetic energy are conserved in an elastic collision; only momentum is conserved in an inelastic one.
Q3.Work done by a force is zero when: Answer: (c) The force is perpendicular to the displacement. Since W = Fd cosθ, when θ = 90°, cosθ = 0, so work done is zero (e.g., circular motion under centripetal force).
Interactive Concept Tool: Torque Calculator (τ = rFsinθ) Q1.The point at which the entire mass of a body is considered to be concentrated is called the: Answer: (b) Centre of mass. For a system of particles, the centre of mass moves as if the entire mass were concentrated there and all external forces acted at that point.
Q2.The moment of inertia of a body depends on: Answer: (c) Both mass and its distribution relative to the axis of rotation. I = Σmr², so mass farther from the axis contributes more to the moment of inertia.
Q3.The law of conservation of angular momentum explains why an ice skater spins faster when they: Answer: (a) Pull their arms closer to their body. This decreases moment of inertia (I); since angular momentum L = Iω is conserved, angular velocity ω increases.
Interactive Concept Tool: Gravitational Force Calculator Q1.According to Kepler's Third Law, the square of a planet's orbital period is proportional to: Answer: (c) The cube of the semi-major axis of its orbit. T² ∝ a³, a relationship that holds for all planets orbiting the Sun.
Q2.The value of acceleration due to gravity (g) is generally greatest at the: Answer: (b) Poles. Earth's radius is smallest at the poles (Earth is an oblate spheroid), and g increases as distance from Earth's centre decreases.
Q3.Escape velocity from Earth's surface is approximately: Answer: (a) 11.2 km/s. This is the minimum speed needed for an object to escape Earth's gravitational pull without further propulsion (7.9 km/s is orbital velocity, not escape velocity).
Interactive Concept Tool: Young's Modulus Calculator Q1.Young's modulus is defined as the ratio of: Answer: (b) Longitudinal stress to longitudinal strain. This ratio measures a material's stiffness along the direction of applied tensile or compressive force.
Q2.Within the elastic limit, the relationship between stress and strain is given by: Answer: (a) Hooke's Law. It states that stress is directly proportional to strain within the elastic limit of a material.
Q3.Beyond the elastic limit, a material that undergoes permanent deformation before breaking is called: Answer: (c) Ductile. Ductile materials (like copper) can be drawn into thin wires and deform plastically before fracturing; brittle materials break with little plastic deformation.
Interactive Concept Tool: Pressure Calculator (P = F/A) Q1.According to Bernoulli's principle, as the speed of a fluid increases, its pressure: Answer: (b) Decreases. This is the basis of Bernoulli's principle, explaining phenomena such as lift on an airplane wing.
Q2.Surface tension is responsible for which of the following phenomena? Answer: (a) A needle floating on water. Surface tension creates a stretched elastic-like film at the liquid surface, allowing denser objects to rest on it without sinking.
Q3.Viscosity of a liquid is a measure of its: Answer: (c) Internal resistance to flow. Viscosity arises from internal friction between adjacent layers of a fluid moving at different velocities.
Interactive Concept Tool: Temperature Scale Converter Q1.Heat transfer through direct contact between particles, without any bulk motion of matter, is called: Answer: (a) Conduction. Heat is transferred by molecular collisions in conduction; convection involves bulk fluid motion, and radiation needs no medium at all.
Q2.The amount of heat required to raise the temperature of 1 kg of a substance by 1°C is called its: Answer: (b) Specific heat capacity. It is a property of the material itself, e.g. water's specific heat is 4186 J/kg·K.
Q3.During a change of state (e.g., ice melting to water) at constant pressure, the temperature: Answer: (c) Remains constant. The heat absorbed during a phase change (latent heat) goes into breaking intermolecular bonds, not raising temperature.
Interactive Concept Tool: First Law of Thermodynamics Calculator (ΔU = Q - W) Q1.A thermodynamic process occurring at constant volume is called: Answer: (c) Isochoric. Since volume doesn't change, no work is done by or on the gas (W = PΔV = 0).
Q2.In an adiabatic process, there is no exchange of: Answer: (a) Heat with the surroundings. Q = 0 in an adiabatic process, so any change in internal energy is entirely due to work done.
Q3.The Second Law of Thermodynamics implies that: Answer: (b) Heat cannot spontaneously flow from a colder to a hotter body without external work. This is the Clausius statement of the Second Law, closely tied to the concept of entropy always increasing in an isolated system.
Interactive Concept Tool: Degrees of Freedom Finder Q1.According to Kinetic Theory, the pressure exerted by a gas is due to: Answer: (b) Continuous collisions of gas molecules with the container walls. Each collision transfers momentum to the wall, and the cumulative effect over a large number of molecules is measured as pressure.
Q2.The average kinetic energy of gas molecules is directly proportional to: Answer: (c) Absolute temperature. Average KE = (3/2)kT, showing temperature is a direct measure of the average kinetic energy of molecules.
Q3.An ideal gas is one that is assumed to have: Answer: (a) No intermolecular forces and negligible molecular volume. This idealization allows the ideal gas law PV = nRT to hold; real gases deviate from this at high pressure and low temperature.
Interactive Concept Tool: SHM Time Period Calculator (T = 2π√(m/k)) Q1.In Simple Harmonic Motion, the restoring force is always directed: Answer: (a) Toward the mean (equilibrium) position. The restoring force F = -kx is always opposite to displacement, pulling the object back toward equilibrium.
Q2.At the mean position of SHM, the velocity of the oscillating particle is: Answer: (b) Maximum. At the mean position, all the energy is kinetic, so velocity is maximum; at extreme positions, velocity is zero and acceleration is maximum.
Q3.The time period of a simple pendulum depends on: Answer: (c) Length of the pendulum and acceleration due to gravity. T = 2π√(L/g); notably, the time period is independent of the mass of the bob.
Interactive Concept Tool: Wave Speed Calculator (v = fλ) Q1.Sound waves are an example of: Answer: (b) Longitudinal waves. Sound propagates through compressions and rarefactions, with particle vibration parallel to the direction of wave travel.
Q2.The phenomenon of two or more waves overlapping to form a resultant wave is called: Answer: (a) Superposition. The Principle of Superposition states that the resultant displacement at a point is the vector sum of displacements due to individual waves.
Q3.The apparent change in frequency of a wave due to relative motion between source and observer is called the: Answer: (c) Doppler effect. Frequency appears higher when the source approaches the observer and lower when it recedes, as with an ambulance siren passing by.
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FAQs
You can start the latest Physics mock tests for Class 11 by selecting your chapter from the links above. These tests are free, dont need login and are optimized for the 2026-27 academic session.
Yes, our Physics online tests are strictly as per the latest CBSE pattern with 20% MCQ weightage and main focus on competency-based and case-study questions.
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Online tests help Class 11 students build confidence and time management. By solving above tests MCQs you can apply theoretical knowledge which is important for 2026-27 exams.