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Question 20N.1A.SL.TZ0.17

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Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.1A.SL.TZ0.17
Level SL Paper 1A Time zone TZ0
Command term Question number 17 Adapted from N/A
17.
[Maximum mark: 1]
20N.1A.SL.TZ0.17

The air in a pipe, open at both ends, vibrates in the second harmonic mode.

What is the phase difference between the motion of a particle at P and the motion of a particle at Q?

A.  0

B.  π2

C.  π

D.  2π

[1]

Markscheme

C

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