What with college essays and things these past few months, I've been a bit physics starved. I am looking for some interesting physics( and mathematics) problems to get my brains physics side whirring again. So please, fire away!
a double slit experiment with a little twist where second slit has defferent width than the first. say wavelength is 500 nm. width of the slits are 10 and 20 microns. distance between center of the slits 100 micron.
the screen is 5 meters from the slit.
where is the central bright and first dark of both sides?
a perfect sphere has perfectly reflective inner surface. drill a hole on its surface and light a laser pointer to it with 25 degree angle to the radius. how many times the laser beam is reflected before it gets out?