Whenever a ray of light meets the floor of separation involving two transparent media, it is sharply bent or refracted. Because rays are truly only directions and have no Bodily existence, the passage of light waves through a floor must be thought of if refraction should be to be understood. https://bestbluetoothspeaker03681.newbigblog.com/35851959/getting-my-eye-glass-store-near-me-to-work