Physics
For a ray of light to suffer total internal reflection it has to pass from :

Air to glass
Air to water
Water to glass
Glass to water

ANSWER DOWNLOAD EXAMIANS APP

Physics
Energy in reflected light :

Does not depends on the angle of incidence
Becomes maximum for angle of incidence equal to 45°
Decreases with the increase in angle of incidence
Increases with the increase in angle

ANSWER DOWNLOAD EXAMIANS APP