D14
= D14
{c}
{scope}
Source for this section: https://www.whatdotheyknow.com/request/physics_past_papers_23/response/3514893/attach/4/FOI%202026%20628%20Smith%20materials.pdf?cookie_passthrough=1#page=271[Physical PDF pages 271–272, printed pages 7–8 of Physics B (2A), 2 June 2010].