Advertisements
Advertisements
प्रश्न
How can the pitch of sound produced in a piano be changed ?
Advertisements
उत्तर
In a piano, the string is struck to make the string vibrate and produce sound. The pitch of sound produced can be changed by stretching or loosening the strings of piano.
APPEARS IN
संबंधित प्रश्न
What is loudness of sound? What factors does it depend on?
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)?
An observer X is on an island 5500 m from a vertical cliff on the shore. A ship Y is anchored between the island and the Cliff. A blast on the ship’s siren is heard twice by X, the interval being 5s. [Velocity of sound = 330 ms−1]
(i) Find the distance of the ship from the island.
(i) Find the distance of the cliff from the ship.
State three conditions necessary for hearing sound.
High-frequency sounds that cannot be heard by you are called _______.
Sound can travel through solids, gases, liquids, and even vacuum.
Sound cannot travel through ______.
What types of medium are required for sound to travel?
Explain the types of mechanical waves.
