Advertisements
Advertisements
प्रश्न
If a ringing bicycle bell is held tightly by hand, it stops producing sound. Why?
Advertisements
उत्तर
This is because when the ringing bell is held tightly with our hand, it stops to vibrate and so do the sound. Hence, sound is produced when an object vibrates.
APPEARS IN
संबंधित प्रश्न
Explain how sound is produced by your school bell.
Explain why you can predict the arrival of a train by placing your ear on the rails without seeing it.
Which of the following cannot transmit sound? Water, Vacuum, Aluminium, Oxygen gas
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?
When the pitch of note produced by a harmonium is lowered, then the wavelength of the note :
Figure X shows a trace of a sound wave produced by a particular tuning fork :
(a) On the graph paper given in Figure Y, draw a trace of the sound wave which has a higher frequency than that shown in figure X.
(b) On the graph paper show in Figure Z, draw a trace of the sound wave which has a larger amplitude than that shown in Figure X.
The region in a sound wave, with higher pressure and density, is called ______ and that with low pressure and density is called ______.
Sound is produced by ______.
What is vibration?
