In a hydrogen atom, a transition from the 2nd to the 1st excited state will produce
A) a dark absorption line.
B) an ultraviolet spectral line.
C) no emission line.
D) three different emission lines.
E) the bright red Balmer alpha emission line.
E
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Which of the following objects would be found on the Moon's surface?
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A long straight wire carrying 15. A is perpendicular to a 0.10 T field. Find the force per meter on the wire
What will be an ideal response?
A disk is suspended by a nail such that it pivots in a vertical plane about a point on the edge of the disk. If the disk's radius is 25 cm, what is the period of oscillation?
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