Suggest a hypothesis that you can conclude from step 1 and 2 of the instructions. dentify the dependant and independent variables in Step 1.
Vrite down TWO observations that can be made out of the investigation. about the rubbing of balloons with woolen cloth​

What would occur if the index of refraction of a material was less than n=1? the speed of light would increase to a speed larger than the maximum speed of light in a vacuum. the light wave would not bend at all though the material. the light wave would not be able to refract and would instead reflect off of the material. the speed of light would reduce to values close to 0 m/s.