Chemical

1. Light
Important Formula for Light
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sin
sin
i
n
r

D
n
d

c
n
v

1
sin
n
c

1
P
f

i
o
h
m
h

v
m
u

1 1 1
u v f
 
o
e
f
m
f
e
o
P
m
P

o ed f f 
o ed f f 
o em m m 