The unit of 
is:
( 
intensity of an electromagnetic wave, 
speed of light)
A
Vm
B
C
NC
D
Nm
Text Solution
Verified by ExpertsThe correct answer is:
B
The unit of the expression 
can be determined by exploring the relationship between intensity ( 
) and the electric field ( 
) in an electromagnetic wave.
The intensity of an electromagnetic wave is given by:
From this equation, we can solve for the electric field 
:
The symbol 
represents the electric field, which is measured in units of Newtons per Coulomb (N/C). Therefore, the unit of the expression 
is also 
.
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