DP Physics (last assessment 2024)
Question 18M.3.HL.TZ2.a
| Date | May 2018 | Marks available | [Maximum mark: 3] | Reference code | 18M.3.HL.TZ2.a |
| Level | HL | Paper | 3 | Time zone | TZ2 |
| Command term | Outline | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 3]
18M.3.HL.TZ2.a
Outline the formation of a B scan in medical ultrasound imaging.
[3]
Markscheme
many/array of transducers send ultrasound through body/object
B scan made from many A scans in different directions
the reflection from organ boundaries gives rise to position
the amplitude/size gives brightness to the B scan
2D/3D image formed «by computer»
[3 marks]
