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प्रश्न
- Name one factor on which the frequency of sound emitted due to vibrations in an air column depends.
- How does the frequency depend on the factor stated in part (a).
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उत्तर
- The frequency of sound emitted due to vibration in an air column depends on the length of the air column.
- The factor which influences the frequency of sound is the length of the air column. As the length of the air column increases, the frequency decreases. Thus, we can conclude that they are inversely proportional to each other. `"f" alpha "l"/iota`
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संबंधित प्रश्न
State the ways by which the frequency of transverse vibrations of a stretch string can be increased
Why are the Ultrasonic waves are not audible to us?
What is meant by the natural frequency of vibration of a body?
State one condition for a body to execute free/natural vibrations.
State two ways of increasing the frequency of vibrations of a stretched string.
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 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.
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.
