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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.
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 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.
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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
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
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 -
Application Date:15 April,2024 - 20 May,2024
Slot Booking Date:16 May,2024 - 17 May,2024
Hello aspirant
You haven't mentioned your category to which you belong .
Considering you as general candidate it's not possible to get a mbbs seat with 320 score , though you may try for other medical courses , also it depends upon neet cut off 2024 . Cut off changes every year. It is dependent on factors including students appeared , seat intake , difficulty level of exam, normalisation process and previous year's cut off.
Qualifying percentile For general category is 50 percentile ie score between 720 - 137
As you seek admission in Tamil Nadu
You may try in following colleges
ACS medical college and Hospital, Chennai
Alagappan university
For rank prediction you may visit the link given below
https://medicine.careers360.com/neet-rank-predictor
For college prediction you must follow the link given below
https://medicine.careers360.com/neet-college-predictor
Hello aspirant
Considering you as a general category candidate you have chances of getting mbbs seat In UP but whether you will get through state quota government college , seems a bit difficult.
Looking at 2 - 3 previous year's cut off , after analysis it is observed that for state quota seat in UP you must score 611+ marks , this year you need 620+ marks for state counseling in UP .
You may get medical seat in following colleges
GS medical college
Saraswati medical college
heritage Institute , Bhadawar
For rank prediction you may visit the link given below
https://medicine.careers360.com/neet-rank-predictor
For college prediction you may visit the following link
https://medicine.careers360.com/neet-college-predictor
Hello aspirant
591 is quite a good score . In private colleges in west Bengal you have chances of getting a mbbs seat though it depends upon cut off neet 2024.
Hence Which college you will get can't bd predicted now.
Now looking at previous year's cut off trends and also your score , You may try in following colleges in west Bengal
Medical college , kolkata
ESI PGIMSR, Esic medical college
All India Institute of Medical Sciences, Bankura
Aiims kalyani
Fir rank prediction please refer the link given below
https://medicine.careers360.com/neet-rank-predictor
For college prediction you must follow the link given below
https://medicine.careers360.com/neet-college-predictor
Hello aspirant
Apki beti ke yadi neet 2024 me 686 marks aate hai to bahut achhi baat hai .
686 score bahyt badiya score hai, in marks par apki beti ko achhe college me mbbs seat mil sakti hai lekin ALL India Quota se seat milegi ya nahj ye neet cut off 2024 par depend karta hai .
Neet qualifying marks general category ke liye hai 50 percentile, score 720 - 137
SC /ST /OBC ke liye hai 40 percentile 137 - 107
Aur pwd candidate ke liye hai 45 percentile
Pichhle varshon ki cut off ke adhar par nimnlikhit college me admission milne ki sambhavna hai
Grant medical college mumbai
Government medical college, Andhra pradesh
Maharaja Agrasen medical college
Madras medical college , Madras
Aiims colleges
Rank aur college prediction ke liye neeche di gayi link par contact kare
https://medicine.careers360.com/neet-rank-predictor
College predictor
https://medicine.careers360.com/neet-college-predictor
Hello Akhila
320 marks are a moderate score , you may try but it won't be possible to get bds with this score .
Even if you get , you may get medical seat for other courses such as bams or bhms or physiotherapy as it depends upon cut off . Cut off neet 2024 will decide which course and college you will get .
Cut off changes every year , also it depends upon your category to which you belong, your state , number of students appeared in exam, Toughness level of exam, previous year's cut off etc .
Now looking at previous years cut off trends it seems a bit difficult to get bds seat but you must try .
Following links will help you out in rank and college prediction .
https://medicine.careers360.com/neet-rank-predictor
https://medicine.careers360.com/neet-college-predictor
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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.
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