The critical angle of a certain medium is `sin ^(-1)((3)/(5))`. The polarizing angle of the medium is :
The critical angle of a certain medium is `sin ^(-1)((3)/(5))`. The polarizing angle of the medium is :
A. `sin^(-1)(4/5)`
B. `tan^(-1)(5/3)`
C. `tan^(-1)(3/4)`
D. `tan^(-1)(4/3)`
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Correct Answer - B
Polarising angle, `tani=1/(sinC)`
`therefore" "coti=sin(sin^(-1)(3/5))`
`or" "tani=5/3rArri=tan^(-1)(5/3)`
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