DP Physics (last assessment 2024)
Question 19M.3.HL.TZ1.15c
| Date | May 2019 | Marks available | [Maximum mark: 2] | Reference code | 19M.3.HL.TZ1.15c |
| Level | HL | Paper | 3 | Time zone | TZ1 |
| Command term | Suggest | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 2]
19M.3.HL.TZ1.15c
(c)
Ultrasound can be used to measure the dimensions of a blood vessel. Suggest why a B scan is preferable to an A scan for this application.
[2]
Markscheme
a B scan is a computer generated combination of a large number of A scans ✔
allowing a measurement in different directions/two dimensional image ✔
Examiners report
Part c) was also difficult to answer for most of the candidates.
