DP Physics (last assessment 2024)
Question 18M.2.SL.TZ1.6c.iv
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.2.SL.TZ1.6c.iv |
| Level | SL | Paper | 2 | Time zone | TZ1 |
| Command term | Derive | Question number | c.iv | Adapted from | N/A |
c.iv.
[Maximum mark: 2]
18M.2.SL.TZ1.6c.iv
The radioactive nuclide beryllium-10 (Be-10) undergoes beta minus (β–) decay to form a stable boron (B) nuclide.
An ice sample is moved to a laboratory for analysis. The temperature of the sample is –20 °C.
(c.iv)
Derive the units of intensity in terms of fundamental SI units.
[2]
Markscheme
correct units for Intensity (allow W, Nms–1 OR Js–1 in numerator)
rearrangement into proper SI units = kgs–3
Allow ECF for MP2 if final answer is in fundamental units.
[2 marks]
