2025 (source code)
= 2025
{scope}
{title2=A15276H1}
Source PDF: https://mmathphys.physics.ox.ac.uk/sites/g/files/vzsiac2991/files/mmathphys/documents/media/a15276h1_correction.pdf[Official corrected paper, A15276H1, Trinity Term 2025]. Solutions to all three questions follow; the examination required two. Numbered headings identify the source parts without reproducing their statements. We normalize the <scale factor> to $a_0=1$ and set the <speed of light> to $c=1$ except where it is restored explicitly.
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