| Date | May 2014 | Marks available | 1 | Reference code | 14M.1.sl.TZ1.5 |
| Level | SL | Paper | 1 | Time zone | TZ1 |
| Command term | Question number | 5 | Adapted from | N/A |
Question
The diagram represents the emission spectrum of hydrogen. Groups of arrows are labelled W, X and Y.
Which statement is correct?
A. The arrows represent the transition of electrons to different energy levels when heat is supplied.
B. The arrows of W represent emission in the UV region.
C. The smallest arrow of X represents a violet line in the emission spectrum.
D. The arrows of Y represent emission of electromagnetic waves with higher energy than those represented by X and W.
Markscheme
B
Examiners report
[N/A]
Syllabus sections
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