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Question 19M.1.SL.TZ2.17

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

A student blows across the top of a cylinder that contains water. A first-harmonic standing sound wave is produced in the air of the cylinder. More water is then added to the cylinder. The student blows so that a first-harmonic standing wave is produced with a different frequency.

What is the nature of the displacement in the air at the water surface and the change in frequency when the water is added?

[1]

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D

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