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except for the fact that hertz didn't do that? ;) (at least not from our sources) wonder if you can measure wavelength with diffraction alone?

*shrug* You can measure with ultrasound too using the heel bone.. I compared ultrasound and x-rays, hopefully won't get marked down for the fact that that application of ultrasound isn't strictly taking a visual "image" of the bone

Yeah 392 would have been the answer I got, but does ANYONE remember if the question mentioned diameter or radius or what??

I got like 3 ms-1 for that .. can't remember exact, ah well. Guess a slight difference in graph could make it a slight bit different, lets hope its right lol. I think I got pretty much exactly double the amount of turns as you though. =/ (I remember it rounded to 400 or so) was the measurement...

Ok I got no clue whether this is the right place to post but.. I'm curious what people thought, so. HSC 2007. Q10 multiple choice: What is the wave property that enabled Hertz to calculate the velocity of radiowaves and compare it to the velocity of light? A) Interference B)...