Critical angle for a certain medium is $\sin ^{-1}(0.6)$. The polarizing angle of that medium is

The critical angle of a certain medium is $\sin^{-1}\left(\frac{3}{5}\right)$. The polarizing angle of the medium is

Light is incident at an angle $i$ on a glass slab. The reflected ray is completely polarised. The angle of refraction is

$A$ person lives in a high-rise building on the bank of a river $50\, m$ wide. Across the river is a well-lit tower of height $40\, m$. When the person,who is at a height of $10\, m$,looks through a polarizer at an appropriate angle at light of the tower reflecting from the river surface,he notes that the intensity of light coming from a distance $X$ from his building is the least,and this corresponds to the light coming from light bulbs at height $Y$ on the tower. The values of $X$ and $Y$ are respectively close to (refractive index of water $\simeq \frac{4}{3}$)

The angle of incidence at which reflected light is totally polarized for reflection from air to glass (refractive index $n$) is

Can reflection result in plane polarised light if the light is incident on the interface from the side with higher refractive index?