Advertisements
Advertisements
प्रश्न
A key of mechanical piano is first struck gently and then struck again but much harder this time. In the second case :
पर्याय
sound will be louder but pitch will not be different
sound will be louder and the pitch will also be higher
sound will be louder but pitch will be lower
both loudness and pitch will remain unaffected
Advertisements
उत्तर
By pressing the key gently and then again by, some force, increasing the amplitude of the wave, but the frequency remains the same.
(a) Sound will be louder, but pitch will not be different.
APPEARS IN
संबंधित प्रश्न
Fill in the blank.
Sound is produced when a body ______.
How does a musician playing on a flute change the pitch of sound produced by it ?
The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?
What should an object do to produce sound?
If 20 waves are produced per second, What is the frequency is hertz?
If a ringing bicycle bell is held tightly by hand, it stops producing sound. Why?
Draw the sketches of two waves A and B such that wave A has twice the wavelength and half the amplitude of wave B.
A sound producing body is at considerable distance from a man. There can be four different media W, X, Y and Z between the sound producing body and the man. The medium X brings the sound to man most quickly whereas medium Z takes the maximum time. The time taken by medium W in bringing sound to man is less than that of X but more than that of Z. The medium Y, however, fails to bring the sound from the sound producing body to the man. Which medium could be the one :
(a) having on fixed shape and no fixed volume?
(b) having a fixed volume but no fixed shape?
(c) having the same composition as that on the moon?
(d) having a fixed shape and a fixed volume?
Which of the following vibrates when a musical note is produced by the cymbals in an orchestra?
How are different sound notes generated in musical instruments like guitar, which uses strings for sound generation, and flute, which uses blown air for sound generation?
