[youtube]XHiDpP-572Y[/youtube]

trying to figure out if tracker can be used to determine useful curriculum learning. seems to be possible to determine the velocity of wave when a length is assumed.

say if S1S2 is 0.3m

since we know the video i n phase sources, by observing the bright light at S1 and S2 happens together.

the centre line, say length is set at 4.659E-1 m from S1 to P where P is a bright interference.

similarly, S2P is roughly 4.734E-1 m

by stepping the video,for simplicity 4 steps result in t = 0.133 s = T.

thus, f = 1/T = 7.52 Hz

the wavelength is determined as 1.097E-1 m as shown

therefore, using v = f.lambda

v = 7.52(1.097E-1)

v = 0.825 m/s

[color=red][b]is this correct?[/b][/color]

took 3 videos

real setup video taken by lookang

in phase sources video taken by lookang

in anti-phase sources video taken by lookang