Advertisements
Advertisements
प्रश्न
Write the answer in your own words.
What is meant by vibration?
Advertisements
उत्तर
The rapid oscillations or to-and-fro movements of an object are called vibrations. Vibrating objects have a particular speed.
संबंधित प्रश्न
What is sound and how is it produced?
Select the correct alternative :
Sound travels the fastest in
Describe an experiment to estimate the speed of sound in air.
State whether the following statement is true or false :
Sound produced by a vibrating body travels to our ears by the actual movement of air.
Give reason for the following :
In most of the cases, we cannot see the vibrations of a sound producing object with our eyes.
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 :
Sound is produced by ______.
Describe an experiment to show that sound cannot travel through vaccum.
Sound travels in the air if
