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प्रश्न
What are damped vibrations? How do they differ from free vibrations? Give one example of each.
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उत्तर
Damped vibrations - The periodic vibrations of a body of decreasing amplitude in the presence of resistive force are called the damped vibrations.
For example, When a slim branch of a tree is pulled and then released, it makes damped vibrations. A tuning fork vibrating in air execute damped vibrations.
Free Vibrations: A body's vibrations that occur when there is no outside force acting upon it are referred to as free vibrations.
For example, the vibration a basic pendulum produces.
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संबंधित प्रश्न
Give one example of damped vibrations
Why does the amplitude of a vibrating body continuously decrease during damped vibrations?
The following diagram shows the displacement – time graph of the vibrating body.
- Name the kind of vibrations
- Give one example of such vibrations.
- Why is the amplitude of vibrations gradually decreasing?
- What happens to the vibrations of the body after some time?
A tuning fork is set into vibration in air. Name the kind of vibrations it executes.
Draw a sketch showing the displacement of a body executing damped vibrations against time.
A metallic blade is made to vibrate at its one end by keeping its other end clamped. The vibrations of the blade die away after some time. Explain, how you lower the frequency of the vibration of the blade?
Draw a displacement time graph to illustrate damped vibrations.
A metal foot ruler is held at the edge of a table. It is pressed at its free end and then released. It vibrates.
- Name the vibrations produced.
- State one way to increase the frequency of these vibrations.
A tuning fork is vibrating in air. State whether the vibrations are natural or damped?
