If hati denotes a unit vector along an incident ray hatr a unit vector along the refracted ray into a medium of refractive index mu and hatn a unit vector normal to the boundary of the media directed towards the incident medium, then the law of refraction can be written as

If hati denotes a unit vector along an incident ray hatr a unit vector

1.	If hati denotes a unit vector along an incident ray hatr a unit vector along the refracted ray into a medium of refractive index mu and hatn a unit vector normal to the boundary of the media directed towards the incident medium, then the law of refraction can be written as
Answer» `hati.hatn=MU(hatr.hatn)` `hatixxhatn=mu(hatnxxhatr)` `hatixxhatn=mu(hatrxxhatn)` `mu(hatixxhatn)=hatrxxhatn` ANSWER :C

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If hati denotes a unit vector along an incident ray hatr a unit vector along the refracted ray into a medium of refractive index mu and hatn a unit vector normal to the boundary of the media directed towards the incident medium, then the law of refraction can be written as

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