Question 1
Mathematics · 2026
The value of cosec 10° − √3 sec 10° is equal to:
Correct!
The answer is A, 4.
🎉 Limited time offer: every test and question is free for all students
· Ends 27 November
Sign up free →
JEE Main (Joint Entrance Examination)
Conducted by the National Testing Agency for admission to NITs, IIITs and other engineering colleges, and the gateway to JEE Advanced.
Exam pattern
- Paper 1 (B.E. / B.Tech): Physics, Chemistry and Mathematics, computer-based.
- Each subject has multiple-choice and numerical-value questions.
- +4 for a right multiple-choice answer, −1 for a wrong one.
On Lakshyank
Marked here as: +4 correct, −1 wrong, 0 skipped
525 practice questions
Official site: jeemain.nta.nic.in ↗Syllabus
Physics 19 topics
- Units, measurement and dimensions
- Kinematics (motion in a straight line and a plane)
- Laws of motion and friction
- Work, energy and power
- Centre of mass and rotational motion
- Gravitation
- Properties of solids and liquids
- Thermodynamics
- Kinetic theory of gases
- Oscillations and waves
- Electrostatics
- Current electricity
- Magnetic effects of current and magnetism
- Electromagnetic induction and alternating current
- Electromagnetic waves
- Ray and wave optics
- Dual nature of matter and radiation
- Atoms and nuclei
- Electronic devices (semiconductors)
Chemistry 20 topics
- Some basic concepts of chemistry
- Atomic structure
- Chemical bonding and molecular structure
- States of matter
- Chemical thermodynamics
- Solutions
- Equilibrium (chemical and ionic)
- Redox reactions and electrochemistry
- Chemical kinetics
- Classification of elements and periodicity
- p-block elements
- d- and f-block elements
- Coordination compounds
- Basic principles of organic chemistry
- Hydrocarbons
- Haloalkanes and haloarenes
- Alcohols, phenols and ethers
- Aldehydes, ketones and carboxylic acids
- Amines
- Biomolecules and polymers
Mathematics 15 topics
- Sets, relations and functions
- Complex numbers and quadratic equations
- Matrices and determinants
- Permutations and combinations
- Binomial theorem
- Sequences and series
- Trigonometry
- Straight lines and conic sections
- Limits, continuity and differentiability
- Applications of derivatives
- Integral calculus
- Differential equations
- Vector algebra
- Three-dimensional geometry
- Statistics and probability
How to prepare for JEE Main
- Know the Class 11 and 12 NCERT chapters thoroughly before moving to harder problems.
- Practise numerical-value questions separately: there are no options to help you.
- Take timed mock tests every week to build speed and learn which questions to skip.
- Keep a mistake notebook and redo wrong questions after a week.
- Give equal time to Physics, Chemistry and Mathematics. Chemistry is often the quickest marks.
JEE Main previous year papers
JEE Main topic-wise practice
Try some JEE Main questions
Question 2
Physics · 2026
The kinetic energy of a simple harmonic oscillator is oscillating with angular frequency of 176 rad/s. The frequency of this simple harmonic oscillator is ______ Hz. [take π = 22/7]
Correct!
The answer is A, 14.
Question 3
Chemistry · 2026
A → products (First order reaction). Three sets of experiment were performed for a reaction under similar experimental conditions. Run 1: 100 mL of 10 M solution of reactant A Run 2: 200 mL of 10 M solution of reactant A Run 3: 100 mL of 10 M solution of reactant A + 100 mL of H₂O added. The correct variation of rate of reaction is:
Correct!
The answer is B, Run 3 < Run 1 = Run 2.
Question 4
Mathematics · 2026
The sum of all possible values of n ∈ N, so that the coefficients of x, x² and x³ in the expansion of (1 + x²)²(1 + x)ⁿ, are in arithmetic progression is:
Correct!
The answer is D, 9.
Question 5
Physics · 2026
An unpolarised light is incident at an interface of two dielectric media having refractive indices of 2 (incident medium) and 2√3 (medium) respectively. To satisfy the condition that reflected and refracted rays are perpendicular to each other, the angle of incidence is ______.
Correct!
The answer is A, 60°.
JEE Main: frequently asked questions
What subjects are in JEE Main?
Physics, Chemistry and Mathematics for Paper 1 (B.E. / B.Tech).
Is there negative marking in JEE Main?
Yes, for multiple-choice questions: +4 for a right answer and −1 for a wrong one.
What is JEE Main used for?
It is used for admission to NITs, IIITs and other engineering colleges, and qualifies you to attempt JEE Advanced. Check the official site for the current rules.
Where can I practise JEE Main questions?
On Lakshyank you can practise previous year questions and exam-like mock tests marked the way JEE Main is marked.
This page is a summary for practice. The official notification is always the final word: dates, eligibility and syllabus change. All exams