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संबंधित प्रश्न
Name the phenomenon involved in tunning a radio set to a particular station
When a body vibrates under a periodic force, the vibrations of the body are ______.
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.
State two ways in which resonance differs from forced vibrations.
A string stretched between its ends is made to vibrate by placing the stem of a vibrating tuning fork at its one end. State three ways how you will increase the frequency of note produced by the string.
What do you understand by forced vibrations?
What are the factors that affect the frequency of a vibrating string and how do they affect the frequency?
What do you understand by free vibrations of a body? Draw a displacement-time graph to represent them. Given one example.
