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If hat(i) denotes a unit vector along in...

If `hat(i)` denotes a unit vector along incident light ray, `hat( r)` a unit vector along refracted ray into a medium of refractive index `mu` and `hat(n)` unit vector normal to boundary of medium directed towards incident medium, then law of refraction is

A

`hat(i).hat(n) = mu(hat(r)hat(n))`

B

`hat(i)xxhat(n) = mu(hat(n)xxhat(r))`

C

`hat(i)xxhat(n) = mu(hat(r)xxhat(n))`

D

`mu(hat(i)xxhat(n)) = hat(r)xxhat(n)`

Text Solution

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The correct Answer is:
C
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