3.0 Physical Constants

 

Greek Alphabet

A a

Alpha

B b

Beta

C c

Gamma

D d

Delta

E e

Epsilon

Z z

Zeta

H h

Eta

Q q J

Theta

I i

Iota

K k

Kappa

L l

Lambda

M m

Mu

N n

Nu

X x

Xi

O o

Omicron

P p

Pi

R r

Rho

S s

sigma

T t

Tau

n

Upsilon

F f

Phi

C c

Chi

Y y

Psi

W w

Omega

 

Constants

 

Relative Dielectric Constants

Material

vacuum

1.0

air

1.0006

teflon

2.0

polyethelyne

2.25

paraffined paper

2.5

rubber

3.0

plexiglass

3.4

mica

3 6

glass

5 10

germanium

16

water

78.54

 

Permittivity

 

Material

Comments

copper

0.99999

diamagnetic

silver

0.99998

gold

0.99996

bismuth

0.99983

aluminum

1.000021

paramagnetic

titanium

1.00018

palladium

1.00082

nickel

250

ferromagnetic

cobalt

600

 

Permiability

 

For Most Dielectrics

 

Index of Refraction

Material

Index of Refraction

air

1.0

carbon dioxide

1.0

water

1.33

ethyl alcohol

1.36

magnesium fluride

1.38

fused silica

1.46

glass

~1.5

sodium chloride

1.54

polystyrene

1.59

calcite

1.6

sapphire

1.8

zinc sulfide

2.3

gallium arsenide

3.35

silicon

3.5

aluminum gallium arsenide

3.6

germanium

4.0