If 
denotes a unit vector along incident light ray, 
a unit vector along refracted ray into a medium of refractive index μ and 
unit vector normal to boundary of medium directed towards incident medium, then law of refraction is -
A
. 
= μ ( 
. 
)
B
× 
= μ ( 
× 
)
C
× 
= μ ( 
× 
)
D
μ ( 
× 
) = 
× 
× ) = ×
Text Solution
Verified by ExpertsThe correct answer is:
C
By snell's ( 
× 
) = μ ( 
× 
)
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