When we hear a sound, we can identify its source from

Options

A. amplitude of sound
B. intensity of sound
C. wavelength of sound
D. overtones present in the sound

Answer

To solve the question "When we hear a sound, we can identify its source from?", we need to analyze the provided options: amplitude of sound, intensity of sound, wavelength of sound, and overtone present in the sound.

### Step-by-Step Solution:

1. **Understanding Amplitude of Sound**:
- Amplitude refers to the maximum extent of a vibration or oscillation, measured from the position of equilibrium.
- In terms of sound, amplitude relates to the loudness of the sound.
- However, different sources can produce sounds with the same amplitude, so amplitude alone cannot help us identify the source of the sound.

**Hint**: Think about how loudness alone doesn't tell you what instrument is playing.

2. **Understanding Intensity of Sound**:
- Intensity is the power per unit area carried by a sound wave and is related to how loud the sound is perceived.
- Similar to amplitude, while intensity can indicate how loud a sound is, it does not provide information about the source of the sound. Different sources can have the same intensity.

**Hint**: Consider how two different instruments can play at the same loudness but still sound different.

3. **Understanding Wavelength of Sound**:
- Wavelength is the distance between successive crests of a wave.
- While wavelength is related to the pitch of the sound, it does not provide enough information to identify the source. Different sources can produce sounds with the same wavelength.

**Hint**: Remember that different sounds can have the same pitch.

4. **Understanding Overtones Present in Sound**:
- Overtones are higher frequencies that occur above the fundamental frequency of a sound.
- They play a crucial role in the timbre or quality of the sound.
- Each musical instrument has a unique set of overtones, which allows us to distinguish between different sources of sound even if they are playing the same note.

**Hint**: Think about how a piano and a violin can play the same note but sound different due to their overtones.

5. **Conclusion**:
- After analyzing all the options, we find that the overtone present in the sound is what allows us to identify the source of the sound.
- Therefore, the correct answer is **D: overtone present in the sound**.

### Final Answer:
When we hear a sound, we can identify its source from the overtone present in the sound.