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A ray of light moving along the vector ...

A ray of light moving along the vector (`-i-2j`)undergoes refraction at an interface two media,which is the x-zplane. The refracive index for `ygt0` is `2` and below it is`sqrt(5)//2`.the unit vector along which the refracted ray moves is:

A

`(-3hat(i)-5hat(j))/(sqrt(34))`

B

`(-4hat(i)-3hat(j))/(5)`

C

`(-3hat(i)-4hat(j))/(5)`

D

`(3hat(i)+5hat(j))/(sqrt(34))`

Text Solution

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The correct Answer is:
B
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