DOC.
14
HEURISTIC
VIEW OF
LIGHT
169
include
Hughes
1912 and
Richardson and
Compton
1912.
Although
the
equation was
gen-
erally accepted
after
Millikan's
work,
the
light
quantum concept was
not
accepted
until the mid-
1920s.
[45]
For
Lenard's
studies
of
cathode lumines-
cence,
see
Lenard
1903.
[46]
"PE"
should be
"IIE".
[47]
Lenard
1903.
[48]
For
previous
studies, see, e.g.,
Lenard
1900a and
1900c;
Stark
1902,
pp.
74-79; and
Stark
1909b,
pp.
614-616.
[49]
Lenard
1900a,
p.
495.
[50]
Stark
1902.
[51]
This
expression
is
equivalent
to the law
of
photochemical
equivalence,
established in Ein-
stein
1912a.
This section
may
be viewed
as
ini-
tiating
the field
of
quantum photochemistry.
Previous Page Next Page