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This is the fourth set of equations for the AP Physics B exam. Waves, Optics, Atomics and Nuclear Physics

velocity of a wave

v=ƒλ

index of refraction

n=c/v

Snell's Law

n₁sinθ₁=n₂sinθ₂

Critical Angle

sinθ=n₂/n₁

Lens-Mirror Equation

1/s∨o+1/s∨i=1/ƒ

Magnification of an image

M=h∨i/h∨o=-(s∨i/s∨o)

Focal point of a mirror

ƒ=R/2

Seperation between bands of thin slit interference

dsinθ=mλ

Location of bands in thin slit interference

x∨m≈(mλL)/d

Energy gained from photoelectric effect

E=hƒ=pc

Maximum KE of a particle released in nuclear fission

Kmax=hƒ-Φ

Wavelength of light to release a electron

λ=h/p

Energy released from the conversion of mass

E=(Δm)c²

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