When light passes from a medium with a higher refractive index to a medium with a lower refractive index, such as from water to air, there is a phenomenon called total internal reflection that occurs under certain conditions.
The critical angle is the angle of incidence at which the refracted ray of light traveling from a medium into another medium lies along the interface between the two media. For angles of incidence greater than the critical angle, total internal reflection occurs. This means that instead of the light ray being refracted and passing into the second medium, it is entirely reflected back into the first medium.
Therefore, if the angle of incidence is greater than the critical angle, the light ray will be reflected back into the water, and no transmission into the air will occur.