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JEE Main Physics Formulas 2026 - JEE Main is one of the top Exams for engineering. Having a consolidated formula sheet makes your preparation for the JEE Main exam more manageable and efficient. Candidates should manage all three subjects properly, when candidates have a compiled list of important physics formulas candidates can revise the concepts faster and solve numerous problems easily. Knowing when and which formula to apply is crucial for aspirants. Here are some important JEE Main Physics formulas 2025 based on the JEE syllabus. Candidates can follow the Physics formulas to prepare for the IIT JEE exam:
Download JEE Main Physics Formulas PDF
Speed and Velocity
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I. Speed Formula-
Speed $=\frac{\text { Change in distance }}{\text { change in time }}$
$v=\frac{\text { distance }}{\text { time }}$
- Tips of Speed-
1. S.I. unit $\longrightarrow \mathrm{ms}^{-1}$ or meters per second.
2. Dimensions $=L T^{-1}$
3. Speed is a scalar quantity.
- E.g: A body covers a distance of 18 m in 1 sec
Using the formula of speed. $v=\frac{\text { distance }}{\text { time }}=\frac{18 \mathrm{~m}}{1 \mathrm{~s}} \Rightarrow 18 \mathrm{~m} / \mathrm{s}$
II. Average Speed and Instantaneous Speed
Average Speed Formula-
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Average speed $=\frac{\text { total distance covered }}{\text { total time taken }} v_{a v}=\frac{s}{t}$
E.g. A body covers a total distance of 50 m with variable speed in 5 sec.
$$
\begin{aligned}
& v_{a v}=\frac{s}{t} \\
& \Rightarrow \frac{50 \mathrm{~m}}{5 \mathrm{~s}}=10 \mathrm{~m} / \mathrm{s}
\end{aligned}
$$
Average Speed $=10 \mathrm{~m} / \mathrm{s}$
- Tips for average speed-
If an object or body covers s1 distance in $\mathrm{t1}$ time and s2 distance in 12 time then average speed is calculated by the Formula- $V_{\alpha v}=\frac{s_1+s_2}{t_1+t_2}$
2. Instantaneous Speed-
- It is the speed at that particular instant or small interval of time.
- Formula-
$$
v_{\text {inst }}=\lim _{\Delta t \rightarrow 0} \frac{\Delta x}{\Delta t}
$$
III. Velocity
Rate of change of displacement with time.
Formula-
$$
V=\frac{\text { displacement }}{\text { time }}
$$
- Tips For Velocity-
1. S.I. unit $\rightarrow \mathrm{m} / \mathrm{s}$
2. Dimensions- $L T^{-1}$
3. Velocity is a vector quantity.
4. Velocity is also called speed in a definite (particular) direction.
IV. Average Velocity and Instantaneous Velocity
1. Average Velocity-Formula-
Average Velocity $=\frac{\text { Total Displacement }}{\text { Total time taken }} \vec{V}_{\text {avg }}=\frac{\vec{S}_{\text {net }}}{t}$
2. Instantaneous Velocity Formula-
$$
\vec{V}_{\text {inst }}=\lim _{\Delta t \rightarrow 0} \frac{\overrightarrow{\Delta x}}{\Delta t}
$$
Chapter - Work Energy and Power
- Work done by a constant force-
1. The scalar product of the force vector $(\vec{F})$ and the displacement vector $(\vec{S})$
$$
W=\vec{F} \cdot \vec{S}
$$
2. The product of the magnitude of force $(F)$ magnitude of displacement $(S)$ and cosine of the angle between them $(\Theta)$
$$
W=F S \cos \theta
$$
3. If the number of forces $\vec{F}_1, \vec{F}_2, \vec{F}_3 \ldots \ldots, \vec{F}_{\mathrm{n} \text {, are acting on a body and it shifts from position vector }} \vec{r}_1$ to position vector $\vec{r}_2$
Then
$$
W=\left(\vec{F}_1+\vec{F}_2+\vec{F}_3 \ldots \ldots \ldots+\vec{F}_n\right) \cdot\left(\vec{r}_2-\vec{r}_1\right)=\vec{F}_{n e t} \cdot \vec{r}_{n e t}
$$
- Work done by a variable force
Force is a vector quantity. So it has a magnitude as well as direction. A variable force means when its magnitude its direction or both varies with position.
And work done by the variable force is given by -
$$
W=\int \vec{F} \cdot \overrightarrow{d s}
$$
Where $\vec{F}$ is a variable force and $\vec{d}$ is a small displacement
- Kinetic energy
$$
K . E .=\frac{1}{2} m v^2
$$
Where $m \rightarrow$ mass
$$
v \rightarrow \text { velocity }
$$
- Work-energy theorem-
Net work done by all the forces acting on a particle is equal to the change in its kinetic energy.
$$
\begin{aligned}
W & =\frac{1}{2} m v^2-\frac{1}{2} m v_0^2 \\
W & =k_f-k_i
\end{aligned}
$$
Where $m=$ mass of the body
$v_0=$ initial velocity
$v=$ final velocity
- Relation of kinetic energy with linear momentum
$$
k=\frac{p^2}{2 m}
$$
Where $p \rightarrow$ momentum
$$
m \rightarrow \text { mass }
$$
- Change in potential energy -
The change in potential energy between any two points is defined as the work done by the associated conservative force in displacing the particle between these two points without any change in kinetic energy.
$$
U_i-U_f=\int_{r_i}^{r_f} \vec{f} \cdot \overrightarrow{d s}
$$
Where, $U_f$ - final potential energy
$U_i$ - initial potential energy
$f$-force
ds - small displacement
$r_i$ - initial position
$r_f-f i n a l$ position
We can define a unique value of potential energy only by assigning some arbitrary value to a fixed point called the reference point.
- Power
Average power-
$$
P_{a v}=\frac{\Delta w}{\Delta t}=\frac{\int_0^t p \cdot d t}{\int_0^t d t}
$$
Instantaneous power-
$$
P=\frac{d w}{d t}=P=\vec{F} \cdot \vec{v}
$$
Where, $\vec{F} \rightarrow$ force
$$
\vec{v} \rightarrow \text { velocity }
$$
i.e. power is equal to the scalar product of force with velocity
Experts of Careers 360 have compiled a list of important formulas for JEE Mains Physics to make the preparation easy for aspirants. Candidates preparing for the JEE Main exam should remember all the major formulas.
Current electricity, optics, and Properties of solids have more weightage in Physics JEE Main.
In the JEE Main Exam, there are 25 questions of physics out of which 20 questions in section A will be MCQ and 5 questions in section B will be questions with numerical value answers.
Speed= (distance) / (time)
Exam Date:15 January,2025 - 31 July,2025
Counselling Date:21 July,2025 - 26 July,2025
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Hello
Which is the most stable carbocation among methyl, ethyl, tertiary butyl, and allyl carbocations?
Among common molecular shapes, which one has the largest bond angle?
What does a very low equilibrium constant (Kc ≈ 10 power minus 5) indicate about the reaction?
If α and β are the roots of the equation x square - 5x + 6 = 0, find the value of α² + β².
A coin is tossed 3 times. What is the probability of getting exactly 2 heads?
If a = 2i + 3j and b = i + j, calculate the dot product of a and b .
A body starts from rest and accelerates uniformly at 2 m/s². What is its velocity after 5 seconds?
A 2 kg object falls from a height of 10 m. Calculate its kinetic energy just before hitting the ground.
Hi dear candidate,
With the percentile between 70 and 80, your JEE rank should fall between 2,50,000 to 3,00,000 which might be challenging for getting a college with CSE branch as it is very competitive and requires much lower rank.
However, there are potential good private colleges like PCCOE, BVIMR, DY Patil Institute etc. for you to consider.
Talking about MIT WPU then the minimum percentage for 12th board BTech is 50% but the percentile for CSE branch at MIT WPU is at least 90% so you should try other branches like ECE, EEE, Mechanical etc.
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BEST OF LUCK
Hello Prasad
Yes, OBC validity is required for JEE Mains and JEE Advance 2026 exams.
For them, you will need to produce an OBC-NCL certificate issued on or after 1st April of the admission year (which is 2026 in this case so on or after 1st April 2026).
Without that, you will be treated as a General category candidate.
To know more about JEE Mains:
JEE Mains by CAREERS360
To know more about JEE Advance:
JEE Advance by CAREERS360
Hope this answer helps! Thank You!!!
Hello
Your NFAT marks of 42.75 is low if you apply in General Category and it is borderline for Ward of Ex Serviceman.
Your JEE MAINS marks doesn't matter for admission in NFSU main things is the NFAT score.
So there is some chance of you getting NFSU through Ward of Ex Serviceman thought even for that a student generally needs 45-50 marks.
So hope for the best and stay positive. Thank You!!!
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