Sunlight shines directly on to the wall of a large soap bubble (n = 1.33) which is floating in air (n=1). The portion of the this light that is visible to our eye has wave lengths from roughly %u03BB=400nm to %u03BB=700nm.
1) Assuming the light hits perpendicular to the wall of the soap bubble, what is the minimum thickness it could have to produce completely constructive interference for blue light (%u03BB = 475 nm)?
tconstr = nm
2) What is the minimum thickness it could have to produce completely destructive interference for this same blue light?
tdestr= nm
3) What is the minimum thickness it could have to produce completely destructive interference for blue light (%u03BB = 475 nm)?
tdestr= nm