Ordinary light incident on a glass slab at the polarising angle suffers a deviation of ` 22^(@)`. In this case, the angle of refraction is
Ordinary light incident on a glass slab at the polarising angle suffers a deviation of ` 22^(@)`. In this case, the angle of refraction is
A. `56^@`
B. `34^(@)`
C. `68^(@)`
D. `22^@`
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Correct Answer - B
`delta=i-r=22^(@)`
but `i+r=90^(@)`
` :. (i+r)-(i-r)=90^(@)-22^(@)`
`:. 2r=68^(@) " " :. r=34^(@)`
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