If hat idenotes a unit vector along an incident ray , hat ra unit vector along the refracted ray into a medium of refractive index mu and n 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 hat idenotes a unit vector along an incident ray , hat ra unit vect

1.	If hat idenotes a unit vector along an incident ray , hat ra unit vector along the refracted ray into a medium of refractive index mu and n 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 (hat r.hatn)` `hati xx hatn = mu (hatn xx HATR)` `hati xx hatn=mu (hatr xx hatn)` `mu (hati xx hatn) = hatr xx hatn` ANSWER :C

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If hat idenotes a unit vector along an incident ray , hat ra unit vector along the refracted ray into a medium of refractive index mu and n 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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