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Question
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?
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Solution
The vibrations of the blade die away after some time due to air resistance (or damping)
The frequency of vibration of the blade can be lowered:
(i) Increasing the vibrating length of the blade,
(ii) Increasing the thickness of the blade.
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