Advertisements
Advertisements
प्रश्न
What is sound? Explain with example how does sound travel in a medium.
Advertisements
उत्तर
Sound is defined as form of energy that produces the sensation of hearing in our ears. The sound travels in medium through energy transfers by wave motion from one place to another. For example , when the prong of the tuning fork vibrate , the waves start moving from one fork to another , the air start getting compressed . The compression is pushed forward. Now, when the fork vibrate in another direction, the air in the immediate neighbor which was compressed, now get rarefied. As a result, a series of compression and rarefactions are produced and sound energy travels in the direction where compression and rarefactions travel.
APPEARS IN
संबंधित प्रश्न
What are infrasonics? Can you hear them?
How does the loudness of sound produced depend on the vibrating area of the body ?
What type of waves are illustrated by the movement of a rope whose one end is fixed to a pole and the other end is moved up and down?
What are longitudinal waves and transverse waves? Explain with the help of labelled diagrams.
How are the wave velocity V, frequency f and wavelength λ of a wave related? Derive the relationship.
Select the correct option:
A part of the longitudinal wave in which particles of the medium are closer than the normal particles is called:
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. |
