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
How does a musician playing on a flute change the pitch of sound produced by it ?
Explain why you can predict the arrival of a train by placing your ear on the rails without seeing it.
What minimum distance is required between the source of sound and the reflecting surface to hear an echo ? Give reason.
Which of the following cannot transmit sound? Water, Vacuum, Aluminium, Oxygen gas
Name the physical qantity whose SI unit is 'hertz'.
What will be the change in the wavelength of a sound wave in air if its frequency is doubled?
If a ringing bicycle bell is held tightly by hand, it stops producing sound. Why?
Give reason for the following :
In most of the cases, we cannot see the vibrations of a sound producing object with our eyes.
Draw the sketches of two waves A and B such that wave A has twice the wavelength and half the amplitude of wave B.
______ is produced when an object is set to vibrate.
