Aglass plate having an index of refraction is 1.66 is immersed in a certain alcohol. the surface of the glass is inclined at an angle of 44° with the vertical. when a horizontal ray in the glass strikes the interface, you observe that it is at the critical angle. what is the index of refraction of the alcohol?

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.