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IIT JEE Physics Practice Test Online

IIT JEE Physics practice test covering Mechanics, Electrostatics, Current Electricity, Magnetism, Optics, Thermodynamics and Modern Physics with detailed solutions.

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About this IIT JEE Physics practice test

IIT JEE Physics has a strong bias toward Mechanics, Electrodynamics, Modern Physics and Optics. This practice test combines those high-weightage chapters with Thermodynamics and Waves so a student gets a balanced revision drill before Mains. The starter set leans toward numerical-type questions and conceptual MCQs that mirror the actual JEE Mains pattern, while the answer key explains the formula and approach used. Replace the sample with chapter-specific previous-year JEE questions to regenerate a focused mock paper for that one topic. Useful for both school-time JEE preparation and last-month revision.

IIT JEE Physics Practice Test sample questions

These starter questions help you launch a physics mock test quickly. Swap them with your own worksheet, notebook, or textbook questions any time.

1. A body is projected with velocity 20 m/s at 30° above the horizontal. Find its time of flight. (g = 10 m/s²)
2. State and prove the work-energy theorem.
3. Two charges +5μC and −3μC are 10 cm apart. Find the force between them.
4. Define electric flux. Write its SI unit.
5. State Kirchhoff's laws of electrical networks.
6. A wire of resistance 4Ω is bent in the shape of a square. Find the resistance between two adjacent corners.
7. State Faraday's laws of electromagnetic induction.
8. A convex lens of focal length 20 cm forms an image of an object placed 30 cm away. Find the image distance.
9. State the laws of reflection of light.
10. Define refractive index. State Snell's law.
11. A simple pendulum has a time period of 2 s on Earth. What will be its time period on the moon (g_moon = 1.6 m/s²)?
12. Define escape velocity. Derive its formula.
13. State the first law of thermodynamics.
14. State Bohr's postulates of the atomic model.
15. A metal of work function 2.0 eV is illuminated with light of wavelength 400 nm. Find the maximum kinetic energy of emitted electrons. (h = 6.6×10⁻³⁴ J·s)

Related search topics

mechanicselectrostaticsopticsmodern physicsthermodynamics

This page is built for students looking for iit jee physics practice test, chapter practice, and quick school exam revision.

Why this practice page is useful

Drill JEE Physics topics that historically carry the highest paper weightage — Mechanics, Electrodynamics and Modern Physics.

Mix of conceptual MCQs, numerical-type and assertion-reason patterns matches the real Mains paper.

Pick a chapter, paste 5–10 of its questions, and the AI generates a tailored mock with worked steps.

Answer key & quick explanations

Short answers for the sample questions above. Use this to self-check before generating a fresh AI-built mock test.

  1. Time of flight: T = 2u sinθ/g = 2×20×0.5/10 = 2 s.
  2. Work-energy theorem: Net work done on a body = change in its kinetic energy: W = ΔKE = (1/2)m(v² − u²).
  3. Force between charges: F = (9×10⁹)(5×10⁻⁶)(3×10⁻⁶)/(0.1)² = 13.5 N (attractive).
  4. Electric flux: Number of field lines passing normally through a surface; SI unit: N·m²/C or V·m.
  5. Kirchhoff's laws: KCL — sum of currents at a junction = 0. KVL — sum of voltage drops around a closed loop = 0.
  6. Square wire resistance: Each side = 1Ω; adjacent corners give 1Ω in parallel with 3Ω → 3/4 Ω.
  7. Faraday's laws: 1) Induced EMF arises whenever flux through a circuit changes. 2) EMF ∝ −dΦ/dt.
  8. Image distance: 1/v − 1/(−30) = 1/20 → v = 60 cm.
  9. Reflection laws: Angle of incidence = angle of reflection; incident ray, reflected ray and normal lie in the same plane.
  10. Refractive index: n = c/v; Snell: n₁ sinθ₁ = n₂ sinθ₂.
  11. Pendulum on moon: T ∝ 1/√g → T_moon = 2×√(10/1.6) ≈ 5 s.
  12. Escape velocity: v_e = √(2GM/R); for Earth ≈ 11.2 km/s.
  13. 1st law of thermodynamics: ΔQ = ΔU + ΔW (energy conservation).
  14. Bohr's postulates: Electrons revolve in stationary orbits without radiating; angular momentum quantised = nħ; emit/absorb photons during transitions.
  15. Photoelectric KE: E = hc/λ = 3.1 eV → KE_max = E − W = 3.1 − 2.0 = 1.1 eV.

IIT JEE Physics units covered

Typical IIT JEE syllabus units this practice test draws from. Paste questions from any unit below to generate a focused mock test.

  • Units, Dimensions and Measurement
  • Kinematics and Vectors
  • Laws of Motion
  • Work, Energy and Power
  • Rotational Motion
  • Gravitation
  • Properties of Matter (Elasticity, Fluids)
  • Thermodynamics and Kinetic Theory
  • Oscillations and Waves
  • Electrostatics
  • Current Electricity
  • Magnetic Effects of Current and Magnetism
  • Electromagnetic Induction and AC
  • Ray and Wave Optics
  • Modern Physics (Atoms, Nuclei, Photoelectric)
  • Semiconductor Devices

How to use this iit jee physics practice test page

1. Open the ready-made starter and generate the test.

2. Review the output as a quick IIT JEE physics mock test.

3. Replace the starter with your own previous-year exam questions for more accurate revision.

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