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Question 18M.1.HL.TZ2.27

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.1.HL.TZ2.27
Level HL Paper 1 Time zone TZ2
Command term Question number 27 Adapted from N/A
27.
[Maximum mark: 1]
18M.1.HL.TZ2.27

A train is approaching an observer with constant speed

                                                          c 34

where c is the speed of sound in still air. The train emits sound of wavelength λ. What is the observed speed of the sound and observed wavelength as the train approaches?

M18/4/PHYSI/HPM/ENG/TZ2/27

[1]

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A

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