VCA
Important Physics Formulas
A Comprehensive Guide for NEET Preparation
Class 11
Kinematics
- Equations of Motion
v = u + at -
s = ut + ½at² -
v² = u² + 2as - Projectile Range
R = u²sin(2θ)/g - Projectile Max Height
H = u²sin²(θ)/2g
Laws of Motion
- Newton’s Second Law
F = ma - Friction Force
f = μN - Centripetal Force
F = mv²/r - Momentum
p = mv
Work, Energy & Power
- Work Done
W = Fd cos(θ) - Kinetic Energy
K.E. = ½mv² - Potential Energy
P.E. = mgh - Work-Energy Theorem
W = ΔK.E. - Power
P = W/t = Fv
Gravitation
- Law of Gravitation
F = Gm₁m₂/r² - Escape Velocity
vₑ = √(2GM/R) - Orbital Velocity
vₒ = √(GM/R) - Gravitational Potential
V = -GM/r
Thermodynamics
- Ideal Gas Equation
PV = nRT - First Law
ΔQ = ΔU + ΔW - Carnot Engine Efficiency
η = 1 - T₂/T₁
Class 12
Electrostatics
- Coulomb’s Law
F = kq₁q₂/r² - Electric Field
E = F/q - Electric Potential
V = W/q - Capacitance
C = Q/V - Parallel Plate Capacitor
C = ε₀A/d
Current Electricity
- Ohm’s Law
V = IR - Resistance
R = ρL/A - Power
P = VI = I²R - Kirchhoff’s Laws
ΣI = 0, ΣV = 0
Magnetic Effects
- Magnetic Force
F = qvBsin(θ) - Force on Conductor
F = ILBsin(θ) - Biot-Savart Law
dB = (μ₀/4π)Idlsin(θ)/r²
Optics
- Mirror Formula
1/f = 1/v + 1/u - Lens Formula
1/f = 1/v - 1/u - Snell’s Law
n₁sin(i) = n₂sin(r) - Young’s Double Slit
β = λD/d
Modern Physics
Dual Nature of Matter
- Photon Energy
E = hν = hc/λ - Photoelectric Effect
K_max = hν - φ - de Broglie Wavelength
λ = h/p = h/mv
Atoms & Nuclei
- Bohr’s Radius
r ∝ n²/Z - Bohr’s Energy
E ∝ -Z²/n² - Mass-Energy Equiv.
E = mc² - Radioactive Decay
N = N₀e-λt
Semiconductors
- Transistor Current Gain (β)
β = ΔIC/ΔIB - Transistor Current Gain (α)
α = ΔIC/ΔIE - Relation
β = α / (1 - α)