Advertisements
Advertisements
Question
In fig. 2 two musical notes of the same pitch and same loudness are played on a violin and on a piano. Their wave forms are as shown in the diagram below. Explain why the wave patterns are different.

Advertisements
Solution
The number, and nature of harmonics and overtones present, affects the quality of sound. The different combinations of number and nature of harmonics and overtones present in the 'notes' gives these different wave patterns.
APPEARS IN
RELATED QUESTIONS
Write true or false for a given statement.
Larger is the amplitude, feeble is the sound.
Distinguish between loudness and intensity of sound.
Name the type of waves produced when a tuning fork is struck in air.
We can distinguish between the musical sounds produced by different singers on the basis of the characteristic of sound called :
Fig. shows three ways in which a string of length l in an instrument can vibrate.
![]() |
![]() |
![]() |
| (i) | (ii) | (iii) |
- Which of the diagram shows the principle note?
- Which vibration has the frequency four times that of the first?
- Which vibration is of the longest wavelength?
- What is the ratio of the frequency of the vibration in (i) and (ii)?
What is the audible range of frequency for human?
The speed of sound is more in hydrogen than in nitrogen. Is this statement true? Give a reason for your answer.
What is the ratio of speed of light to speed of sound?
Match the following.
| Ultrasonics | Frequency below 20Hz |
| Speed of sound in air | Needs material medium |
| Infrasonics | 330ms-1 |
| Sound propagation | Frequency more than 20000 Hz |
Match the following.
| 1. | Tuning fork | The point where density of air is maximum |
| 2. | Sound | Maximum displacement from the equilibrium position. |
| 3. | Compressions | The sound whose frequency is greater than 20,000 Hz. |
| 4. | Amplitude | Longitudinal wave. |
| 5. | Ultasonics | Production of sound. |



