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Question 18M.3.HL.TZ1.14a

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.3.HL.TZ1.14a
Level HL Paper 3 Time zone TZ1
Command term Outline Question number a Adapted from N/A
a.
[Maximum mark: 2]
18M.3.HL.TZ1.14a
(a)

Outline how ultrasound is generated for medical imaging.

[2]

Markscheme

crystal vibration /piezo-electric effect

caused by an alternating potential difference is applied across a crystal

[2 marks]

Syllabus sections