Physics
(a) Draw a graph between displacement and time for a body executing natural vibrations
(b) Where can a body execute the natural vibrations?
Sound
91 Likes
Answer
(a) Below is the graph between displacement and time for a body executing natural vibrations:

(b) The natural vibrations can occur only in vacuum.
However, in practice it is very difficult to have vacuum. Hence, it is very difficult to realise such vibrations in real life.
Answered By
61 Likes
Related Questions
Why are the stringed instruments like guitar provided with a hollow soundbox?
How do you tune your radio set to a particular station? Name the phenomenon involved in doing so and define it.
The diagram given below shows three ways in which the string of length l in an instrument can vibrate.
(a) Which of the diagram shows the principal note ?
(b) Which vibration has the frequency four times that of the first ?
(c) Which vibration is of longest wavelength ?
(d) What is the ratio of the frequency of vibrations in diagrams (i) and (ii) ?
Explain why strings of different thickness are provided on stringed instrument.
[Hint — Natural frequency of vibration of a stretched string is inversely proportional to the radius (or thickness) of string so notes of different frequencies can be obtained by producing vibrations in the different strings]