DP Physics (last assessment 2024)

Question 19M.3.HL.TZ2.17bii

Date	May 2019	Marks available	[Maximum mark: 1]	Reference code	19M.3.HL.TZ2.17bii
Level	HL	Paper	3	Time zone	TZ2
Command term	Estimate	Question number	bii	Adapted from	N/A

bii.

[Maximum mark: 1]

19M.3.HL.TZ2.17bii

The graph shows a received signal incident upon a transducer to produce an A-scan. The density of the soft tissue being examined is approximately 1090 kg m^-3.

(bii)

Estimate, using data from the graph, the depth of the organ represented by the dashed line.

[1]

Markscheme

4.5 × 10⁻² «m»✔

Examiners report

Many candidates did not seem to know how to start answering the question. The factor of two was often omitted when finding the depth of the organ in the A scan.

Syllabus sections

Option C: Imaging

Option C: Imaging » Option C: Imaging (Additional higher level option topics) » C.4 – Medical imaging (HL only)

Option C: Imaging » Option C: Imaging (Additional higher level option topics)

Question 19M.3.HL.TZ2.17bii

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