NEET JEE Physics Notes Quiz Tricks PDF

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Formula Chart - Work, Energy, Power

➪ Vector & Scalars Short Notes 🗒️

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Bernoullis equation

LINEAR VS ROTATION

♻️ Important Scientific Laws and Theories ♻️
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🔹 Ohm's Law - It states that the current passing through a conductor between two points is directly proportional to the potential difference across the two points provided the physical state and temperature etc. of the conductor does not change.

🔹 Pauli exclusion principle - It explains that no two electrons in the same atom or molecule can have the same set of quantum numbers.

🔹 Raman effect - It is the change in wavelength that occurs when light is scattered by the atoms or molecules in a transparent medium.

🔹 Tyndall effect - The scattering of light by very small particles suspended in a gas or liquid.

🔹 Boyles's Law - It states that temperature remaining constant, volume of a given mass of a gas varies inversely with the pressure of the gas. Thus,
PV = K (constant), where, P = Pressure and V = Volume.

🔹 Charles's Law - It states that pressure remaining constant, the volume of a given mass of gas increases or decreases by 1/273 part of its volume at 0 degree celsius for each degree celsius rise or fall of its temperature.

🔹 Coulomb's Law - It states that force of attraction or repulsion between two charges is proportional to the amount of charge on both charges and inversely proportional to the square of the distance between them.

🔹 Heisenberg principle (uncertainty principle) - It is impossible to determine with accuracy both the position and the momentum of a particle such as electron simultaneously.

🔹 Archimede's principle - It states that a body when wholly or partially immersed in a liquid, experiences an upward thrust which is equal to the weight of the liquid displaced by it. Thus, the body appears to lose a part of its weight. This loss in weight is equal to the weight of the liquid displaced by the body.

🔹 Aufbau principle - It states that in an unexcited atom, electrons reside in the lowest energy orbitals available to them.

🔹 Avogadro's Law - It states that equal volumes of all gases under similar conditions of temperature and pressure contain equal number of molecules.

🔹 Brownian motion - It is a zigzag, irregular motion exhibited by small solid particles when suspended in a liquid or gas due to irregular bombardment by the liquid or gas molecules.

🔹 Bernoulli's principle - It states that as the speed of a moving fluid, liquid or gas, increases, the pressure within the fluid decreases. The aerodynamic lift on the wing of an aeroplane is also explained in part by this principle.

🔹 Gay-Lussac’s Law of combining volumes - Gases react together in volumes which bear simple whole number ratios to one another and also to the volumes of the products, if gaseous — all the volumes being measured under similar conditions of temperature and pressure.

🔹 Graham’s Law of Diffusion - It states that the rates of diffusion of gases are inversely proportional to the square roots of their densities under similar conditions of temperature and pressure.

🔹 Kepler's Law - Each planet revolves round the Sun in an elliptical orbit with the Sun at one focus. The straight line joining the Sun and the planet sweeps out equal areas in equal intervals. The squares of the orbital periods of planets are proportional to the cubes of their mean distance from the Sun.

🔹 Law of Floatation - For a body to float, the following conditions must be fulfilled: The weight of the body should be equal to the weight of the water displaced and the centre of gravity of the body and that of the liquid displaced should be in the same straight line.

🔹 Law of conservation of energy - It states that energy can neither be created nor destroyed but it can be transformed from one form to another. Since energy cannot be created or destroyed, the amount of energy present in the universe is always remain constant.

🔹 Newton's First Law of Motion - An object at rest tends to stay at rest, and an object in motion tends to stay in motion, with the same direction and speed in a straight line unless acted upon by some external force.

❤️❤️ Formulas related to force:❤️❤️

F = ma
F = kx
F = m(vf² - vi²/2S)
F = mv/t
F = md/t²
F = m(vf - vi)/t
F = Area × density × velocity²
F = 1/2 mv²/d
F = 1/2 Pv/d
F = Power/velocity
Fc = mv²/r
Fc = mrw²
Fc/2 = mv²/2r
Fc = 2K.E/r
F = Area × Stress
F = pir² × stress
F = YA × Strain
F = YAl/L
F = pressure × area
F = change in momentum × time interval
F = - 2mVx × Vx/2l
F2 = F1/A1 × A2
F = qE
F = kQ/r²
F = ILB sintheta
F = q (v × B)
F = qE + q(v × B)

📚❣️📚❣️📚❣️📚❣️📚❣️📚
➖➖➖➖➖➖➖➖➖➖

Simple Harmonic Motion : Summary Lecture Notes | Yakeen NEET 2.0 2025 (Legend).pdf

Oscillation Handwritten Notes

Kinetic theory of gases ✍✍

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✍️ Physics ✍️

★ Electromagnetic Waves (EMW)
👉 ( Mindmaps )

Kinematics

EMI Formula Chart

🔷Notes on Friction🔷

➖Friction is result of the irregularities on the two surfaces in contact of each other.
➖The force of friction is dependent on the irregularities of the surface; if it is greater, then the friction will be greater and if it is smooth, then the friction will be lesser.
➖Effectively, the friction is result of the interlocking of irregularities in the two surfaces.
➖If the two surfaces in contact are pressed harder, then the force of friction will increase.
➖On a frictionless surface, if an object starts moving, it would not stop ever; Without friction, it is not possible to construct a building.
➖Friction produces heat; when a matchstick is rubbed against the rough surface, it catches fire.


Substances Reducing Friction
➖The substances that reduce friction are known as lubricants. E.g. when oil, grease, or graphite is applied between the moving part of a machine, then it creates a thin layer; resultantly, moving surfaces do not directly rub against each other that ultimately reduces friction.
➖When a body rolls over the surface of another body, the resistance to its motion is known as the rolling friction. The rolling reduces the force of friction.
➖The frictional force exerted by fluids is known as drag.
➖The frictional force, on an object in a fluid, is dependent on its speed with respect to the fluid.
➖The frictional force depends on the shape of the respective object and also on the nature of the fluid.
➖Fluid friction is minimized by giving suitable shapes to the bodies moving in fluids.

Oscillation Handwritten Notes

🔰 Motion In A Plane 🔰

Motion in a plane refers to the movement of an object in two dimensions, such as on a flat surface. In physics, motion in a plane is studied under the branch of mechanics. The following concepts are important in the study of motion in a plane:

➖ Displacement: The change in position of an object from its initial position is referred to as displacement. It is a vector quantity and is represented by the symbol "d".

➖ Velocity: Velocity is the rate of change of displacement and is also a vector quantity. It is represented by the symbol "v" and has units of meters per second (m/s).

➖ Acceleration: Acceleration is the rate of change of velocity and is also a vector quantity. It is represented by the symbol "a" and has units of meters per second squared (m/s^2).

➖ Kinematic Equations: Kinematic equations are mathematical relationships that describe the motion of an object in a plane. These equations can be used to calculate unknown quantities such as velocity, acceleration, and displacement.

➖ Projectile Motion: Projectile motion refers to the motion of an object under the influence of gravity, where the only force acting on the object is the gravitational force. Projectile motion can be described using kinematic equations and graphical methods.

✅ Concave Mirrors:
By reflection of light, concave mirrors give real, inverted images if the object is beyond the focus and a virtual, erect, enlarged image if the object has a distance less than the focal length from the pole of the mirror.

👉🏻 Uses of Concave Mirrors:
➖ Concave mirrors are used in torches, searchlights, and headlights of vehicles to get powerful parallel beams of light.
➖ Concave mirrors are also used as shaving mirrors to see a larger image of the face.
➖ Dentists use concave mirrors to see bigger images of the teeth of the patients.
➖ Large concave mirrors are used to focus sunlight to produce heat in the solar furnaces.


✅ Convex Mirrors:
By the reflection of light convex Mirrors always give a virtual, erect, diminished image of the object kept infront of the mirror.

👉🏻 Uses of Convex Mirrors:
➖ The convex mirror is used as a side-view mirror in vehicles to give a smaller view of the vehicles coming from behind.
➖ They are used in shops and supermarkets and any other place where there is a requirement for detecting burglars.
➖ Convex mirrors are used in making lenses for sunglasses.
➖ Convex mirrors are used in magnifying glasses, and telescopes.
➖ Convex mirrors are used to reflect street light; because they can reflect over a wide area.
➖ Convex mirrors are kept at the street corners to avoid collisions.

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💠Terminologies in Progressive Wave Motion💠

➖Amplitude
➖Period
➖Wavelength
➖Frequency
➖Wave velocity
➖Phase or phase angle (O)
➖Phase difference
➖Path difference
➖Time difference


🔹Amplitude (A): The amplitude of a wave is the maximum displacement of any particle of the medium from its equilibrium position.

🔹Period (T): Period (T) of a wave is the time taken by any particle of the medium to complete one vibration during a period (T).

🔹Wavelength (λ): Wavelength (λ) is equal to the distance between two consecutive particles of the medium which are in the same state of vibration it is equal to the distance travelled by the wave by its time period (T).

🔹Frequency (f): It is the number of vibrations made per second by any particles of the medium (f = 1/T). Since the frequency of a wave is a characteristic property of the source which is producing the wave motion, hence, the frequency of a wave does not change when a wave travels from one medium to another medium.

🔹Phase or Phase Angle (Φ): It represents the state of vibration of the particle of a medium with respect to its mean position.

🔹Phase Difference Δ(Φ): It represents the different state of vibration of a particle at two different instants (or) any pair of particles at the same instant. ΔΦ = Φ2 – Φ1.

Wave Velocity (v): It is the distance travelled by the wave in one second (v = λ/T). It is determined by the mechanical properties of the medium through which the wave propagates. The velocity of wave motion is measured with respect to the medium, the wave velocity changes when the medium is in motion i.e. speed of sound through air changes when the wind is blowing.

⇒ Check: Sound Waves

There are two velocities associated with a wave. One is the wave velocity and the other one is particle velocity (which is the speed with which the particle of the medium vibrate when the wave passes through the medium).

🔹Path Difference (Δx) or (x): It indicates the distance between two points measured along the direction of propagation of the wave through the medium.

🔹Time Difference (ΔT): It indicates the time taken by the wave to travel from one point to another through the medium.

Oscillation Handwritten Notes

🏷 Semiconductor Short Notes ™

All The Best For Your Future Everyone 💐

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ℙ𝕝𝕒𝕟𝕔𝕜'𝕤 ℚ𝕦𝕒𝕟𝕥𝕦𝕞 𝕋𝕙𝕖𝕠𝕣𝕪
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❖ Substances that absorb or emit light discontinuously in the form of small packets or bundles.

❖ The smallest packet of energy is called quantum (plural quanta).

❖ The radiation is propagated in the form of waves.

❖ The energy of a quantum is directly proportional to the frequency of the radiation

E ∝ v
E = hv
E = (hc)/ λ =hc v

Where E = Energy of radiation
h = Planck's constant
= 6.626 * 10^-27 * erg .sec
= 6.626 * 10^-34 Joule.sec

❖ A body that can absorb or emit energy in whole number multiple of quantum.

E = nhv

Where n = 1, 2, 3, 4

❖ The frequency of emitted radiation goes from lower to higher as the temperature increases.

CALORIMETRY - [PHYSICS]😀