Light from a Nd: Yag laser with a wavelength of 397nm is incident upon a hydrogen atom in the n 2state at rest. What is the highest state to which hydrogencan be excited?
What is Philosophy Introductory Lecture Notes for Phil. 1301 I. What is Philosophy I imagine that many of you have asked this question, well . . . at least as long as you’ve been enrolled in the class! Many of you probably have some preconceived notions about what philosophy is—difficult, intimidating, impractical, ivory tower academics thinking lofty thoughts that have little or no application to real life, and so on. While philosophy can be these things, it isn’t always. Furthermore, when it’s done well, it isn’t most of these things (it can be pretty difficult and intimidating, even if you study