Advertisements
Advertisements
Question
How does the medium affect the amplitude of free/natural vibrations of a body?
Advertisements
Solution 1
The presence of the medium offers some resistance to motion, so the vibrating body continuously loses energy due to which the amplitude of the vibration continuously decreases.
Solution 2
APPEARS IN
RELATED QUESTIONS
Give one example to illustrate forced vibrations.
Why is a loud sound heard at resonance?
A vibrating tuning fork, held over an air column of a given length with its one end closed, produces a loud audible sound. Name the phenomenon responsible for it and explain the observation.
Two pendulums C and D are suspended from a wire as shown in the figure give below. Pendulum C is made to oscullate by displaying it from its mean position. It is seen that D also starts oscillating.

(i) Name the type of oscillation, C will execute.
(ii) Name the type of oscillation, D will execute.
(iii) If the length of D is made equal to C then what difference will you notice in the oscillations of D ?
(iv) What is the name of the phenomenon when the length of D is made equal to C ?
In fig. , P, Q, R and S represent test tubes each of height 20 cm which are filled with water upto heights of 10 cm, 14 cm, 16 cm and 18 cm respectively. If a vibrating tuning fork is placed over the mouth of test tube Q, a loud sound is heard.
(i) Describe the observations with the tubes P, R and S.
(ii) Give the reason for your observation in each case.
(iii) State the principle illustrated by the above experiment.

Differentiate between the following:
Radio waves and light waves.
Explain Why are stringed musical instruments provided with large sound boxes?
What do you understand by forced vibrations?
Describe a simple experiment to illustrate the phenomenon of resonance and explain it.
