The length of a pipe open at both ends is 48 cm and its fundamental frequency is 320 Hz. If the speed of sound be `320 ms^( -1)` then determine the diameter of the pipe. If one end of the pipe be closed, then what will be the fundamental frequency?

Explanation

To solve the problem, we will break it down into two parts: first, we will find the diameter of the pipe when it is open at both ends, and then we will find the fundamental frequency when one end of the pipe is closed.

### Part 1: Finding the Diameter of the Pipe

1. **Given Data:**
- Length of the pipe (l) = 48 cm = 0.48 m
- Fundamental frequency (f) = 320 Hz
- Speed of sound (v) = 320 m/s
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