Advertisements
Advertisements
प्रश्न
When a sound wave travels through air, the air particles
पर्याय
vibrate along the direction of the wave motion
vibrate but not in any fixed direction
vibrate perpendicular to the direction of the wave motion
do not vibrate
उत्तर
vibrate perpendicular to the direction of the wave motion
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
Loudness depends on frequency.
What is a longitudinal wave ?
Complete the following sentence :
Sound is produced by a ___________ body.
An observer sitting in line of two tanks watches the flashes of two tanks firing at each other at the same time, but he hears the sounds of two shots 2s and 3.5s after seeing the flashes. If distance between the two tanks is 510m, find the speed of sound.
The wavelength of the vibrations produced on the surface of water is 2 cm. If the wave velocity is 16 ms-1, calculate:
- no. of waves produced in one second
- time required to produce one wave.
What is sound? Explain with example how does sound travel in a medium.
Give an example to show that light travels faster than sound?
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. |
Sound travels in the air as ______ wave.
