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Final Marks with Comments

Question	Mark	Comment
1	7/10	Different diagram to that expected; neutrons not a common solution
2	7/10	One error in part (ii)
3	4/10	Some errors with EDD setup; lots with neutron instrument
4	7/10	c is not an arbitrary constant; x,y,z are fractional coordinates!
5	5/10	Wrong translation; wrong reflection condition
6	9/10	Wrong meaning for solid lens symbol
7	2/10	Poor attempt
8	3/10	Right idea in (i), but need to ¸ not ´
9	7/10	Wrong answer to (i)
10	8/10	Concept errors in first part of (i)
11	6/10	Very slight overlap in choice of peaks in part (i)
12	1/10	Wrong choice, and failed to convert to 1/d value (not d as calculated) to a
13	1/10	Poor attempt
14	0/10	Wrong!
15	1/10	Supposed to calculate, not estimate values in part (ii)