UPES B.Tech Admissions 2025
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JEE Main Formulas 2025 - JEE Mains is the competitive entrance exams for engineering programs. To do well on this exam, you must understand the fundamental concepts and formulas of Mathematics, Physics, and Chemistry. Aspirants preparing for the JEE Mains can check the JEE Main formulas 2025 available on this page. JEE Mains is Conducted by the National Testing Agency (NTA), this exam evaluates a candidate's proficiency in Physics, Chemistry, and Mathematics. Since there are many formulas in these three subjects, candidates need a way to recall them for revision purposes. JEE Main important formulas in Math, Physics, and Chemistry are integral to calculating answers for numerical questions.
Candidates must make a handy note of all important formulas to revise frequently. Candidates must have a good command of each topic and the formulas to crack the JEE Main 2025 exam to ace the test. Through this article, students can find the provided JEE Main formulas for Maths, Physics, and Chemistry. Knowing important formulas in depth can help you solve problems fast and accurately, which is important for scoring well in JEE Main.
The exam is divided into two main sections:
Section A: The quizzes contained in this section are 20 MCQs for each course. What the MCQ requires is four options and only one of them is the right answer.
Section B: This section has 5 numerical value questions for each of the subject areas, and the candidate only has to answer all five of these. These numerical value questions have to be answered accurately, sometimes to the second decimal place.
Aspirants preparing for JEE Mains must remember that along with concepts one needs to revise and remember the formulas, which are very important while solving any problems. As JEE Main Physics formulas are given below, these formulas need to be memorized daily as direct questions and formulas are asked in exams.
Below are a few important formulas for JEE Main Physics.
Newton’s first law of motion
If
Work, Energy, and Power for Rotating Body
Work-
For translation motion
So for rotational motion
2. Rotational kinetic energy-
The energy of a body has by virtue of Its rotational motion is called its rotational kinetic energy.
3. Power =Rate of change of kinetic energy
For translation motion
So for rotational motion
Or
Newton's Law of Gravitation
Or,
Where
Gravitational Potential energy at a point
Then gravitational force on test mass m at a distance r from M is given by
And the amount of work done in bringing a body from
And this is equal to gravitational potential energy
SoU
Note- U is always negative in the gravitational field because Force is attractive in nature.
Means As the distance r increases U becomes less negative
l.e U will increase as r increases
And for
Gravitational Potential energy of discrete distribution of masses
Change of potential energy
If a body of mass
Then Change of potential energy is given as
If
Le To decrease potential energy of a body we have to bring that body closer to the earth.
The relation between Potential and Potential energy
Where
The gravitational potential energy at height 'h' from the earth's surface
Using
Power in AM waves
If
and
then Power dissipated in any circuit.
So Carrier Power will be given as
Similarly, Total Power of sidebands will be given as
Where
And this gives Total power of AM wave as
where
Note-maximum power in the AM wave without distortion Occurs when
Le
Frequency modulation
Frequency modulation
- Frequency modulation deviation-The The amount by which carrier frequency is varied from its unmodulated value.
The deviation is made proportional to the instantaneous value of the modulating voitage.
- Value of frequency deviation
- The modulation index of frequency modulation-
It is defined as the ratio of maximum frequency deviation to the modulating frequency.
Candidates while studying the chemistry, they need to revise and practice the chemical equations and symbols, to some chemistry is tough subject but when candidates practices chemical equations, revises the properties, formulas and symbols they will have command over the subject Candidates can check the JEE Main Chemistry formulas below
Physical Properties of Alkali Metals
Molar Conductance
Equivalent Conductance
Method of Preparation of Carboxylic Acid
Kinetic Energy
If at a given temperature,
where
If the
then the average kinetic energy is given by :
where v is ghen by
This 'v' is known as root-mean-square speed
Molarity(M): No. of moles of solute/ volume of solution in liter
Molality (m): No. of moles of solute/weight of solvent in kg
Candidates must go through all the formulas and practice the mathematical problems. Without formulas you cannot solve any problem though you know how to solve it. Revising the formulas daily is very important. Here we have provided Mathematics formulas for JEE Mains.
Equation of Circle
Centre-Radius Form
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Let
Using the distance formula, we have
i.e.
If the centre of the circle is the origin or
i.e.
- General equation of a circle
The equation of a circle with centre at (
Which is of the form :
This is known as the general equation of the circle.
Line and Circle
S is a circle with center O and radius r , and L is a straight line in the plane of the circle.
Equation of circle
Equation of line L:
To find their point(s) of intersection, we can solve these equations simultaneously
Exponential Limits
(i)
Proof:
[using Taylor series expansion of
(ii)
In General, if
(a)
(b)
Logarithmic Limits
To evaluate the Logarithmic limit we use the following results:
Proof:
[using Taylor series expansion of
In General, if
The formula of molecular mass in terms of vapor density is
Molecular mass = 2 * vapor density
Revision is the best way to remember all the formulas. Practice more questions based on formulas and revise the formulas on a daily basis.
Yes, you can derive the formula during the exam but it is very time-consuming so candidates must learn all the formulas to save time during the exam.
General formula for alkanes is CnH2n+2 , alkenes is CnH2n and for alkynes is C
nH2n-2 respectively.
HEY THERE!!
With 967 IPE marks and 90 percentile in JEE Mains, you have a very high probability of getting a CSE core seat in SASTRA University through the usual merit-based admission process.
Admission Process at SASTRA
Your Chances
Conclusion:
With your marks, you have a strong possibility of securing a CSE core seat at SASTRA University, though allotment will finally be made depending on the competition that year and the availability of seats. Attempt to apply through both streams to maximize chances.
Dear candidate,
You have 93 percentile in AEEE and 92.9 percentile in JEE Main, so there is a strong chance of getting admission in several branches such as :
Admission for CSE at coimbatore is competitive but there is a chance if you are from home state.
All the best!
HEY THERE!!!
On your marks-56% in JEE Main and 88% in CBSE Board (Tamil Nadu)-you are eligible to apply for the B.Tech. in Electronics Engineering (VLSI Design and Technology) at SASTRA University, Thanjavur, but a seat for the course will be allotted based on the combined merit and competition.
VLSI Course Prospects
Summary
You are eligible and stand a good chance for VLSI course in SASTRA Thanjavur, especially under Stream 2 with your good board marks. Admission is not guaranteed but depends on the merit list and competition annually. Apply early and monitor the official releases for counselling and rank lists.
HEY THERE!!!
With 978/1000 in Class 12th (98%) and 80.9 percentile in JEE Mains, you have a very high chance of getting Computer Science Engineering (CSE) with specialization at SASTRA University, Thanjavur.
How SASTRA Admission Works
Your Chances
Conclusion
You are likely to receive CSE with specialization from SASTRA University through Stream 1 or Stream 2 because of your good board marks and average JEE Main percentile. Final allotment depends on competition and availability of seats, but your profile is very competitive to receive CSE and its specializations in SASTRA.
Hii,
A few key documents are required for JEE. Your admit card, which grants you entry to the exam room, comes first. To prove who you are, you also need identification, such as your school ID or Aadhar card. To prove your age, your birth certificate is required.
Your class 12 grade report is required as documentation of your education. A category certificate is necessary if you fall under one of the reserved categories, such as SC, ST, or OBC. Keep these with you on test day.
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