A pipe of length 100 cm is open at both ends. A loudspeaker situated at one end of the pipe can emit sound of different wavelengths.

Physics

IGCSE&ALevel

CAIE

Exam No：9702_s25_qp_14 Year：2025 Question No：25

Answer:

8.1.1 explain and use the principle of superposition in simple applications

8.1.2 show an understanding of experiments that demonstrate stationary waves using microwaves, stretched strings and air columns

8.1.3 explain the formation of a stationary wave using a graphical method, and identify nodes and antinodes

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