An open pipe 30 cm long and a closed pipe 23 cm long both of the same diameter, are each sounding their first overtone, and these are in unison. What is the end correction of these pipes?

Explanation

To solve the problem, we need to analyze the conditions for both the open pipe and the closed pipe when they are sounding their first overtone and are in unison.

### Step-by-Step Solution:

1. **Identify the Lengths of the Pipes**:
- Length of the open pipe, \( L_o = 30 \, \text{cm} \)
- Length of the closed pipe, \( L_c = 23 \, \text{cm} \)

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