A source of sound of frequency 256 Hz is moving towards a wall with a velocity of 5 m/s. How many beats per second will be heard by an observer O standing in such a positoin that the source S is between O and wall? `(c=330(m)/(s)`)

Explanation

To solve the problem of how many beats per second will be heard by the observer O when the source S is moving towards a wall, we will follow these steps:

### Step 1: Identify the Given Values
- Frequency of the source (f) = 256 Hz
- Velocity of the source (vs) = 5 m/s
- Speed of sound (c) = 330 m/s

### Step 2: Calculate the Frequency Heard by the Observer (f')
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