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Optics
Optics
4 formulas · Physics
Law of refraction (Snell's law)
sin
α
sin
β
=
n
2
n
1
\dfrac{\sin\alpha}{\sin\beta}=\dfrac{n_2}{n_1}
sin
β
sin
α
=
n
1
n
2
Lens equation
1
f
=
1
x
+
1
y
\dfrac{1}{f}=\dfrac{1}{x}+\dfrac{1}{y}
f
1
=
x
1
+
y
1
Image magnification
p
=
y
x
=
h
i
m
g
h
o
b
j
p=\dfrac{y}{x}=\dfrac{h_{img}}{h_{obj}}
p
=
x
y
=
h
o
bj
h
im
g
Optical power
Z
=
1
f
Z=\dfrac{1}{f}
Z
=
f
1
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