A source of sound and an observer, both are moving with the same speed, in the same direction. Will there be any Doppler effect observed by the observer ?

Explanation

To determine whether there is any Doppler effect observed by an observer when both the source of sound and the observer are moving with the same speed in the same direction, we can analyze the situation step by step.

### Step-by-Step Solution:

1. **Understanding the Doppler Effect**: The Doppler effect refers to the change in frequency (or wavelength) of a wave in relation to an observer moving relative to the wave source. It occurs when there is relative motion between the source and the observer.

2. **Identifying the Variables**:
- Let the speed of sound in the medium be denoted as \( V \).
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