DP Physics (first assessment 2025)

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Question 23M.1A.HL.TZ1.29

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.HL.TZ1.29
Level HL Paper 1A Time zone TZ1
Command term Question number 29 Adapted from N/A
29.
[Maximum mark: 1]
23M.1A.HL.TZ1.29

Source S produces sound waves of speed v and frequency f. S moves with constant velocity v5 away from a stationary observer.

What is the frequency measured by the observer?


A.  45f

B.  56f

C.  65f

D.  54f

[1]

Markscheme

B

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