Friday
October 24, 2014

Homework Help: phys.

Posted by bun on Tuesday, December 8, 2009 at 1:57am.

the shortest and longest wavelength series in singly ionized helium is 22.8nm and 30.4nm . Are they right?

How many orders we can see between the angles range observations 30 and 90 in the Balmer's series?

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