분야
pptxThe change in direction of a wave due to a change in its speed. This is most commonly observed when a wave passes from one medium to another.
Theory : Relation between pressure and refractive index in air.
L; size of air cell(34mm)
λ; wavelength of source (650nm)
∆P = C∆m C; constant
∆m; number of pattern
∆P; changing of pressure
Experiment : what is purpose of experiment3?
Purpose1 :Relation between pressure and number of pattern
Purpose2 : Find out C , we can also know n.(n = (λ/2LC)P + 1)
