Recent content by Elbow_Patches

Hello everyone, We conducted an experiment with a strontium-90 source and some different thicknesses of lead. With 2.1mm of lead the count rate (corrected for the background) was 0.69 counts per second, 3.0mm 19.7cps 6.8mm 15.4cps 13.8mm 10.0 cps This would...

Many thanks for the replies guys. One other little question if I may. I will typically give an answer to the minimum number of significant figures given by the information in the question, to a minimum of two, and this is what I understand to be the rule for mark schemes in A level exams...

Thanks for the reply! Good to know I'm not going insane. Does anyone else out there agree/disagree? Elbow

Hello there, I'd like some help with this question from a sample A level Physics paper (please see the question and mark scheme attached). The issue is with 16 c). If the zero error means that the voltages used are less than they should have been, that makes the resistances calculated less than...