← pick another file
Log in
Fraunhofer lines.svg
View on Commons
Default language
català
Deutsch
to
Select a language
390
400
500
450
600
550
700
650
750
K
H
G
F
E
D
C
B
A
wavelength in nm
h
g
f
e
d
h
c
h
b
a
4-1
3-1
Upload to Commons
or
Download
Log in to enable uploading