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प्रश्न
What are forced vibrations?
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उत्तर
The vibrations of a body which take place under the influence of an external periodic force acting on it, are called the forced vibrations.
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संबंधित प्रश्न
Give one example to illustrate forced vibrations.
Differentiate between the forced and resonant vibrations.
Name the phenomenon involved in tuning your radio set to a particular station and define it.
When a body vibrates under a periodic force, the vibrations of the body are ______.
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 ?
Differentiate between the following:
Radio waves and light waves.
What do you mean by resonance? When does resonance occur?
Explain why are soldiers asked to walk out of step while crossing bridges?
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.
Explain free and forced vibrations. Give an experimental arrangement to illustrate the phenomenon of resonance.
