WAEC Physics 2023 Objective — Question 7

Question 7 of 50 from the West African Examinations Council (WAEC) Physics 2023 Objective paper, with the correct answer and a full explanation.

Which of the following diagrams correctly illustrates the mode of oscillation in a tube for the first overtone?

A. A
B. BCorrect
C. C
D. D

Explanation

The first overtone in a tube (closed at one end) corresponds to the third harmonic pattern with the correct number of nodes and antinodes, matching option B.

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