Isnt there anything regarding it in the examiners repory?Jazak Allah for this!
Please can you tell me the anwer for Q6)b) part. The answer to this is 3.2x10^-19, why cant it be 1.6x10^-19?
http://maxpapers.com/wp-content/uploads/2012/11/9702_s12_qp_42.pdf