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प्रश्न
A blade, fixed at one end, is made to vibrate by pressing its other end and then releasing it. State one way in which the frequency of vibrations of the blade can be lowered.
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उत्तर
The inherent mass of the blade can be increased by lengthening it or by placing a small weight on the blade's free end.
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संबंधित प्रश्न
Give one reason for Ultrasonic waves use for echo depth sounding purpose.
Draw a graph between displacement and the time for a body executing free/natural vibrations.
What do you understand by free vibrations of a body?
What is meant by the natural frequency of vibration of a body?
On What factors does the natural frequency of vibration of a body depend?
Explain why strings of different thicknesses are provided on a 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 produces by vibrating different strings.]
A wire stretched between two fixed supports, is plucked exactly in the middle and then released. It executes (neglect the resistance of the medium) ______.
(a) Which one of the following graphs A or B shows free vibrations in a vacuum and which one shows free vibrations in a medium?
(b) How did you come to this conclusion.
