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Waves Optics Equations and Formulas in pdf

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Periodic Waves
v = λ
Frequency
 =  1
T
Beat Frequency
fbeat = fhigh − flow
Intensity
I = P
A
Intensity Level in Decibels
LI = 10 log
I
I0
Interference Fringes
nλ = d sin θ
nλ ≈ x
dL
Index of Refraction
n = c
v
Snell's Law
n1 sin θ1 = n2 sin θ2
Critical Angle
sin θc = n2
n1
Image location
1 =  1 +  1
dodi
Image Size
M = hi  = di
hodo
Spherical Mirrors
 ≈ r
2
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