1.

theta is the polarising angle for two optical media, whose critical angles are C_(1) and C_(2). The correct relation is :

Answer»

`sin theta = (sin C_(1))/(sin C_(2))`
`tan theta = (sin C_(1))/(sin C_(2))`
`theta = (C_(2))/(C_(1))`
`sin theta = (sin C_(2))/(sin C_(1))`

SOLUTION :Using Brewster.s law, `tan theta = (n_(2))/(n_(1))` but `n infty (1)/(sinC)`
`therefore tan theta = (sin C_(1))/(sin C_(2))`


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