24.2 Thin Film Interference

[@franklampard137]

Your channel is so conceptual that everybody need to watch

[@ChadsPrep]

Glad you found us, Frank.

[@SM-gc2tx]

thank you Mr Chad

[@ChadsPrep]

You're welcome

[@axlrose9460]

if they in the question dont give you if it is constructive or deconstructive in the task, how do you know? How can you just from n, lambda and phaseshifts understand if its constructive or destructive?

[@getitdone0010]

this dude is ninja nerds of maths

[@ChadsPrep]

Welcome to the channel!

[@kyobg7]

Great video!

[@ChadsPrep]

Thanks, Asurinse!

[@MrYahya0101]

The equations you provided are only for destructive interference of the waves, right?

[@ChadsPrep]

Correct Youssef! While both constructive and destructive interference occur with thin film interference, it is much more common to look at which colors are not seen (due to destructive interference) than those that might appear with higher intensity (due to constructive interference). Best!

[@MrYahya0101]

@@ChadsPrep Ok thanks. But I don't see why you wrote at 11:54 "No shift" for the case where you have glass, gasoline, and air. That equation would apply to when there is a phase shift (i.e destructive interference) between the reflected and refracted wave, no?