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Important Physics Formulas for NEET 2025: Are you preparing for the NEET 2025 exam? Have you strategized for physics preparation? Physics plays a game-changing role in the NEET UG exam. So, mastering the important formulas from physics is critical to scoring high in the NEET exam. Here, we are providing a physics NEET formula sheet 2025 that contains a detailed topic-wise breakdown of the most important physics formulas that every NEET aspirant should know. From mechanics and electrodynamics to thermodynamics and modern physics, we cover all the key formulas in physics formula sheet for NEET 2025 to enhance your preparation. Boost your confidence and improve your NEET exam preparation with the physics formula sheet NEET. Read on to find out the important formulas for NEET Physics 2025.
Ready to take the National Eligibility cum Entrance Test (NEET) to get into one of the best medical colleges in India? If so, you must understand that reviewing the most important NEET physics formulas during last-minute revision plays a significant role in the exam. Every mark matters in the fiercely competitive NEET exam. NEET Physics Formula-based questions are frequently simple and offer students an opportunity to secure marks easily if they have a firm understanding of the physics chapter-wise formulas for NEET.
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Lastly, becoming proficient with the NEET physics formula improves accuracy, efficiency, confidence, and problem-solving abilities. These are essential traits for NEET exam success. We have compiled a NEET physics formula sheet 2025 from the top 11 most-scoring concepts in physics on the NEET syllabus. The Physics NEET formula sheet will be the guiding light for last-minute NEET exam preparation.
Also, check:
NEET Eligibility Criteria 2025
NEET Previous Year Question Paper
Let 'i' be the amount of current in the circuit at any time and VL, VC and VR be the potential drop across L, C, and R, respectively. Then,
using all these, we can draw phasor diagram as shown below -
So, from the above phasor diagram, V will represent the resultant of vectors VR and (VL -VC). So the equation becomes -
Here, Z is called the impedance of this circuit.
Now come to the phase angle. The phase angle for this case is given as -
General equation of SHM
For Displacement:-
Various displacement equations:-
For Velocity (v):-
For Acceleration:-
So here we can see that the phase difference between x and v is
similarly, the phase difference between v and a is
similarly, the phase difference between a and x is
Differential equation of SHM:-
If the motion of any particle satisfies this equation, then that particle will do SHM
Also read:
Electric Potential due to Hollow conducting, Hollow non-conducting, and Solid conducting Sphere-
In the case of Hollow conducting, Hollow non-conducting, and solid conducting spheres, charges always reside on the surface of the sphere.
If the charge on a conducting sphere of radius R is Q. We want to find V at point P at a distance r from the centre of the sphere.
Outside the sphere (P lies outside the sphere. I.e r>R)
Inside the sphere (P lies inside the sphere. I.e r<R )
and it is given as
At the surface of the Sphere (I.e at r=R)
The graph between (E vs r) and (V vs r) is given below
Electric Potential due to Uniformly Charged Non conducting Sphere-
Suppose charge Q is uniformly distributed in the volume of a non-conducting sphere of Radius R.
And we want to find V at point P at a distance r from the centre of the sphere.
Outside the sphere (P lies outside the sphere. I.e r>R)
Inside the sphere (P lies inside the sphere. I.e r<R )
At the surface of Sphere (I.e at r=R)
Note - If P lies at the centre of the uniformly charged non-conducting sphere (I.e at r = 0),
i.e
The graph between (E vs r) and (V vs r) is given below
Resistance
For a conductor of resistivity having a length of a conductor= l
and Area of a crosssection of conductor= A
Then the resistance of a conductor is given as
Where Resistivity
And For a conductor, if n = No. of free electrons per unit volume in the conductor, = relaxation time then the resistance of the conductor
Then
for different conductors, n is different
And depends on the n
So R is also different.
Resistivity or Specific Resistance
As
If l = 1 m and A= 1 m2
Then R=Resistivity is numerically equal to the resistance of a substance having a unit area of cross-section and unit length.
Potential is the Same across each resistor and current is different
If two resistances are in Parallel:
Current through any resistance:
The required current of the first branch
The required current of the second branch
The algebraic sum of all the potential across a closed loop is zero. This law is also known as Kirchhoff's Voltage law
In closed-loop
Also read:
From Maxwell’s equations, we can observe that electric and magnetic fields in an electromagnetic wave are perpendicular to each other and the direction of propagation. Also, from our discussion of the displacement current, in that capacitor, the electric field inside the plates is directed perpendicular to the plates.
The figure given below shows a typical example of a plane electromagnetic wave propagating along the z direction (the fields are shown as a function of the z coordinate at a given time t). The electric field Ex is along the x-axis and varies sinusoidally with z at a given time. The magnetic field By is along the y-axis and again varies sinusoidally with z. The electric and magnetic fields Ex and By are perpendicular to each other and the direction z of propagation.
Now from the Lorentz equation -
since, , where f is the frequency and
, where
is the wavelength.
But gives the velocity of the wave. So,
. So we can write -
It is also seen from Maxwell’s equations that the magnitude of the electric and magnetic fields in an electromagnetic wave are related as -
In a material medium of permittivity ε and magnetic permeability µ, the velocity of light becomes,
When a ray of light goes from a denser to a rarer medium, it bends away from the normal, and as the angle of incidence in a denser medium increases, the angle of refraction in a rarer medium also increases and at a certain angle, the angle of refraction becomes this angle of incidence is called critical angle (C).
When the Angle of incidence exceeds the critical angle then light ray comes back into the same medium after reflection from the interface. This phenomenon is called Total internal reflection (TIR).
Using Snell's law :
since,
.
or when
= 1 for air and
.
Conditions for TIR :
(i) The ray must travel from a denser medium to a rarer medium.
(ii) The angle of incidence 'i' must be greater than the critical angle 'C' i.e .
Young's double-slit experiment
Let d be the distance between two coherent sources A and B with wavelength λ. A screen XY is placed parallel to an opaque screen at a distance D. O is a point on the screen equidistant from A and B. P is a point at a distance x from O
From the above figure, we can see that the waves from A and B meet at P. It may be in phase or out of phase, depending upon the path difference between the two waves,
Assumptions in this experiment -
1. D> d: Since D > > d, the two light rays are assumed to be parallel, then the path difference,
2. d/λ >> 1: Often, d is a fraction of a millimetre and λ is a fraction of a micrometre for visible light.
For Bright Fringes -
By the principle of interference, the condition for constructive interference is the path difference = nλ
For Dark fringes -
By the principle of interference, the condition for destructive interference is the path difference =
Here, n = 1,2,3 … indicates the order of the dark fringes.
So,
The above equation gives the distance of the nth dark fringe from the point O.
So, we can say that the alternately dark and bright fringe will be obtained on either side of the central bright fringe.
Band Width (β) -
The distance between any two consecutive bright or dark bands is called bandwidth.
Take the consecutive dark or bright fringe -
Angular fringe width -
De - Broglie wavelength of Electron-
De Broglie’s Equation is given as
So for an electron having velocity v attained by it when it is accelerated through a potential difference of V.
then (Kinetic energy gain by the electron) = (work is done on an electron by the electric field)
i.e.
So, the De-Broglie wavelength of Electron is given as
using and
and
we get ( i.e answer will be in
)
Similarly, we can find De - Broglie wavelength associated with charged particle
De - Broglie wavelength with charged particle-
Where
De - Broglie wavelength of the proton
using and
we get
De - Broglie wavelength of Deuteron
using and
we get
De - Broglie wavelength of an Alpha particle (He2+)
using and
we get
Logic Gates-
The five most commonly used logic gates are:
NOT
AND
OR
NAND
NOR
NOT Gate -
A NOT gate is also known as an inverter because it simply inverts the input signal. It is a simple gate with one input and one output. So, the output is ‘0’ when the input is ‘1’ and vice-versa.
A is input
Y is output
The truth table for a NOT gate is as follows:
AND Gate-
An AND gate has two or more inputs and a single output. In this gate, the output is 1 (high) only when all the inputs are 1 (high). The most commonly used symbol for an AND gate is as follows:
A and B are inputs
Y is output
The truth table for the AND gate is as follows
OR Gate-
Like AND Gate, OR gate also has two or more inputs and one output. For this Gate, the logic is that the output would be 1 when at least one of the inputs is 1. It means when the output is high, any of the inputs are high. The commonly used symbol for an OR gate is as follows:
A and B are inputs
Y is output
Relation between input and output
The truth table for an OR gate is as follows:
NAND Gate-
A NAND gate is an arrangement of AND gate followed by a NOT gate. The output is 1 only when all inputs are NOT 1, or the output is high when at least one is low. These are also called Universal gates. The commonly used symbol for a NAND gate is as follows:
A and B are inputs
Y is output
NOT + AND gate
And the truth table for a NAND gate is as follows:
NOR Gate-
Like the NAND Gate, the NOR Gate is also an arrangement of an OR Gate followed by a NOT Gate. In this, the output is 1 (High) only when all inputs are 0 (Low). These are also called Universal gates. The commonly used symbol for a NOR gate is as follows:
A and B are inputs
Y is output
NOT + OR Gate
The truth table for a NOR gate is as follows:
D'morgan's Theorem -
A and B are input.
1)
2)
3)
4)
Some Important relation -
Hello student
With a NEET score of 256, you may be eligible for admission to private medical colleges in Uttar Pradesh . Here are some points to consider:
- *Private Medical Colleges*: All private medical colleges in Uttar Pradesh have one type of cutoff .
- *100% All India Management Quota Cutoff*: The Directorate of Medical Education and Training (DMET), Lucknow, releases the Uttar Pradesh MBBS Management Quota Cutoff college-wise and category-wise .
- *No NRI seats*: There are no NRI seats available in Uttar Pradesh .
- *Cutoff Ranks and Scores*: The cutoff ranks and scores vary for different categories and colleges .
- *Eligibility*: You may be eligible for admission to private medical colleges with a NEET score of 256, but the eligibility criteria may vary for each college .
Some examples of private medical colleges in Uttar Pradesh and their cutoff scores are :
- *Autonomous State Medical College, Ghazipur*: 612 (OPEN category)
- *MAHARANI LAXMI BAI MEDICAL COLL, JHANSI*: 610 (OBC category)
- *Autonomous State Medical College Society, Mirzapur*: 610 (EWS category)
- *Govt Medical College Basti*: 485 (SC category)
- *Autonomous State Medical College, Pratapgarh*: 449 (ST category)
Please note that these cutoff scores are subject to change and may vary for the current academic year. It's always best to check with the colleges directly for the most up-to-date information.
Hello student
Congratulations on your NEET 2024 score! With a rank of 71659 and a score of 605 marks in the GEN category with no reservation, your chances of getting a government BDS seat are possible, but it depends on various factors:
1. *Cutoff ranks*: Last year's cutoff ranks for government BDS seats varied across India, ranging from 30,000 to 1,50,000.
2. *Seat matrix*: The number of BDS seats available in government colleges and their distribution across states.
3. *State-wise counseling*: Counseling processes and seat allotment vary across states.
4. *Category-wise cutoffs*: GEN category cutoffs might be higher than reserved categories.
Based on previous years' trends, here are some possible scenarios:
- *Kerala*: You might get a government BDS seat in Kerala, as their cutoff ranks have been around 70,000-80,000 in previous years.
- *Tamil Nadu*: You have a chance in Tamil Nadu, where cutoff ranks have been around 60,000-70,000.
- *Other states*: In states like Maharashtra, Gujarat, or Rajasthan, the competition is higher, and cutoff ranks might be lower (around 40,000-50,000).
To increase your chances:
1. *Participate in state-wise counseling*: Register for counseling in multiple states to explore opportunities.
2. *Check seat matrices*: Look for states with a higher number of BDS seats in government colleges.
3. *Stay updated*: Monitor counseling schedules, cutoffs, and seat allotment lists regularly.
Remember, these are general insights based on previous years' trends. The actual cutoffs and seat allotment may vary. Best of luck!
Hello aspirant,
The competition for medical seats, especially in private colleges, is extremely intense. Cutoff marks have been rising steadily over the years. To get a seat in a private medical college, you would generally need a score significantly higher than 425.
But, you should not lose hope here, instead, you can consider other healthcare-related fields like BDS, BAMS, BHMS, or paramedical courses. If you're determined to pursue MBBS, focus on improving your score for the next NEET exam.
Remember, it's essential to stay positive and explore alternative paths.
I hope this information helps you.
Hello aspirant,
While the exact cutoff for BAMS in CSMSS can fluctuate yearly based on various factors, a score of 478 is generally considered good for getting admission to a government Ayurveda college like CSMSS.
Factors Affecting Admission:
Orthotists and Prosthetists are professionals who provide aid to patients with disabilities. They fix them to artificial limbs (prosthetics) and help them to regain stability. There are times when people lose their limbs in an accident. In some other occasions, they are born without a limb or orthopaedic impairment. Orthotists and prosthetists play a crucial role in their lives with fixing them to assistive devices and provide mobility.
A career in pathology in India is filled with several responsibilities as it is a medical branch and affects human lives. The demand for pathologists has been increasing over the past few years as people are getting more aware of different diseases. Not only that, but an increase in population and lifestyle changes have also contributed to the increase in a pathologist’s demand. The pathology careers provide an extremely huge number of opportunities and if you want to be a part of the medical field you can consider being a pathologist. If you want to know more about a career in pathology in India then continue reading this article.
Gynaecology can be defined as the study of the female body. The job outlook for gynaecology is excellent since there is evergreen demand for one because of their responsibility of dealing with not only women’s health but also fertility and pregnancy issues. Although most women prefer to have a women obstetrician gynaecologist as their doctor, men also explore a career as a gynaecologist and there are ample amounts of male doctors in the field who are gynaecologists and aid women during delivery and childbirth.
The audiologist career involves audiology professionals who are responsible to treat hearing loss and proactively preventing the relevant damage. Individuals who opt for a career as an audiologist use various testing strategies with the aim to determine if someone has a normal sensitivity to sounds or not. After the identification of hearing loss, a hearing doctor is required to determine which sections of the hearing are affected, to what extent they are affected, and where the wound causing the hearing loss is found. As soon as the hearing loss is identified, the patients are provided with recommendations for interventions and rehabilitation such as hearing aids, cochlear implants, and appropriate medical referrals. While audiology is a branch of science that studies and researches hearing, balance, and related disorders.
An oncologist is a specialised doctor responsible for providing medical care to patients diagnosed with cancer. He or she uses several therapies to control the cancer and its effect on the human body such as chemotherapy, immunotherapy, radiation therapy and biopsy. An oncologist designs a treatment plan based on a pathology report after diagnosing the type of cancer and where it is spreading inside the body.
Are you searching for an ‘Anatomist job description’? An Anatomist is a research professional who applies the laws of biological science to determine the ability of bodies of various living organisms including animals and humans to regenerate the damaged or destroyed organs. If you want to know what does an anatomist do, then read the entire article, where we will answer all your questions.
If we talk about a career as a research associate, it all comes down to one thing - curiosity towards nature and the passion to find answers. A career as a research associate is full of thrill and excitement. However, a research associate also faces a lot of challenges and failures while working on a project. A job of a research associate includes a spectrum of Science as a subject in detail.
A career as a Drug Inspector is regarded as one of the most diverse in the field of healthcare and pharmacy. Candidates must undergo a screening process administered by the UPSC and or SPSCs in order to become drug inspectors. Those who manage it through the selection process will have a rewarding career with a high salary.
A Biotechnologist is a professional who possesses strong knowledge and techniques that are utilised in creating and developing innovative products that improve the quality of human life standards. A biochemist uses biological organisms to create and improve goods and procedures for agriculture, medicine, and sustainability. He or she researches the genetic, chemical, and physical characteristics of cells, tissues, and organisms to determine how they can be used industrially.
A career as R&D Personnel requires researching, planning, and implementing new programs and protocols into their organization and overseeing new products’ development. He or she uses his or her creative abilities to improve the existing products as per the requirements of the target market.
Diverse undergraduate, graduate, and doctoral programs.
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