Advertisements
Advertisements
Question
A key of mechanical piano is first struck gently and then struck again but much harder this time. In the second case :
Options
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
Solution
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
RELATED QUESTIONS
Explain how sound is produced by your school bell.
Describe an experiment to show that each source of sound is a vibrating body.
Name the physical qantity whose SI unit is 'hertz'.
What is the general name of the waves consisting of :
(a) compressions and rarefactions?
(b) crests and troughs?
Give reason for the following :
In most of the cases, we cannot see the vibrations of a sound producing object with our eyes.
When the pitch of note produced by a harmonium is lowered, then the wavelength of the note :
Medium is ______ for generation of sound.
The total number of compressions and rarefactions produced per second in a sound wave is 1000. The frequency of the sound wave is __________.
You and your friend are on the moon. Will you be able to hear any sound produced by your friend?
Sound travels in the air if
