Name all the parts involved in studying Refractive Index in a gemstone Group of answer choices 1: incident ray; 2: refracted ray; 3: incident angle; 4: reflected angle; 5: normal; 6: refracted angle 1: refracted ray; 2: reflected ray; 3: reflected angle: 4: refracted angle; 5: normal, 6: refracted angle 1: incident ray; 2: reflected ray; 3: reflected angle; 4: refracted angle; 5: normal; 6: reflected angle 1: reflected ray; 2: refracted ray; 3: incident angle; 4: refracted angle; 5: normal; 6: reflected angle