Advertisements
Advertisements
प्रश्न
How do the following factor affect the speed of sound in air?
Temperature of air
Advertisements
उत्तर
The speed of sound increases with the increase in temperature of the gas.
APPEARS IN
संबंधित प्रश्न
What is loudness of sound? What factors does it depend on?
Write true or false for a given statement.
Loudness depends on frequency.
A musician recognizes the musical instrument by hearing the sound produced by it, even without seeing the instrument. Which characteristic of sound makes this possible ?
Distinguish between compression and rarefaction.
State the speed of (i) light and (ii) sound in air?
A thin metal plate is placed against the teeth of cog wheel. Cog wheel is rotated at a speed of 120 rotations per minute and has 160 teeth. Calculate:
- frequency of node produced.
- speed of sound, if wavelength is 1.05 m.
- what will be the effect when the speed of cog wheel is doubled?
The diagram given below shows a displacement distance graph of a wave. If the velocity of wave is 160 ms-1, calculate:
- wavelength
- frequency
- amplitude.
On placing your ear close to an iron railing which is tapped some distance away, sound is heard twice. Explain, why?
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. |
What happens to the speed of sound when it gases from a solid to a gaseous state?
