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chroot

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## Main Question or Discussion Point

Hi there, math geeks. Physics geek here. I came across this problem in Griffith's

- Warren

*Introduction to Quantum Mechanics*, and just can't decide how to attack it.I've done the previous problems, but this one just threw me for a loop. Can anyone give me some advice? Thanks!A needle of length L is dropped randomly onto a sheet of paper ruled with parallel lines a distance L apart. What is the probability that the needle will cross a line?

- Warren