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Optics Formulas. The quantity η0 is the wave impedance of vacuum, and η is the wave impedance of a medium with refractive index n. Wave Quantity Relationship. = π= π 2 2 n. k. λ λ. 0. = π ν = 2 n n ω. c c. Intensity Nomogram. The nomogram below relates E, H, and the light intensity I in vacuum.
There is a formula for the refraction of light (as shown in this figure) derivable from Maxwell's Equations, called Snell's Law: n1 sin(θ1) = n2 sin(θ2). (See fig for definitions of symbols) Example: You are looking into water at a little fish. • Your eye draws "straight lines" (dashed, in the fig) and deduces that the fish is located at ...
Formulas for Optics The law of refraction !!sin% "sin% Gauss´ formula for thin lenses and mirrors 1 (= 1) + 1)′ Newton´s formulas for thin lenses and mirrors
Optics Formulas. Light Intensity. The light intensity, I is measured in Watts/m2, E in Volts/m, and H in Amperes/m. The equations relating I to E and H are quite analogous to OHMS LAW. For peak values these equations are: The quantity η0 is the wave impedance of vacuum, and is the wave impedance of η a medium with refractive index n.
3.1 Introduction. Unusually in physics, there is no pithy phrase that sums up the study of dynamics (the way in which forces produce motion), kinematics (the motion of matter), mechanics (the study of the forces and the motion they produce), and statics (the way forces combine to produce equilibrium).
This physics textbook is designed to support my personal teaching activities at Duke University, in particular teaching its Physics 141/142,151/152, or 161/162series (Introduc- tory Physics for life science majors, engineers, or potential physics majors, respectively).
equations is mathematically equivalent to the above quoted eld equations. 1.2.1 Vector elds Consider classical elds as simply functions of coordinates, T(x;y;z) for instance. You plug three numbers into T and get one number out - that would be called a scalar function or scalar eld.
