Monochromatic of light strikes the water refractive index is equal to 4/3 the surface in a cylindrical vessel at an angle incidence 53 degree. depth of water is 36 CM. after striking the water surface, how long will the light take the rich the bottom of the vessel (angle of the most popular pythagorean triangle of side the show 3:4:6 are nearly 37 degree 53 degree and 90 degree)
