A thick glass beaker is filled with Alcohol and is suspended in air. A ray of light is made to enter the beaker with an angle of 30 degrees . Does refraction take place? If yes, where does refraction take place, with what angle does the refracted ray emerge from the beaker, is there any lateral displacement and with what speed does the ray of light emerge.  

Q. ​A thick glass beaker is filled with Alcohol and is suspended in air. A ray of light is made to enter the beaker with an angle of 30$°$. Does refraction take place? If yes, where does refraction take place, with what angle does the refracted ray emerge from the beaker, is there any lateral displacement and with what speed does the ray of light emerge.