Maxwell’s 
greatest
acheivement was the
unification of the laws of
electricity 
and
magnetism (discovered
by Coulomb, Oersted,
Ampere and Faraday)
into a consistent set of
equations now called
Maxwell’s equations From these he arrived at
the most important
conclusion that light is
an 
wave electromagnetic
Interestingly,
Maxwell did not agree
with the idea (strongly
suggested 
by 
the
Faraday’s 
laws 
of
electrolysis) 
that
electricity 
was
particulate in nature Rationalised 2023-24
203
Electromagnetic
Waves
Now, consider a different surface, which has the same boundary