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प्रश्न
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उत्तर
A body clamped at one point, if disturbed slightly from its position of rest, starts vibrating. The vibrations so produced are called natural vibrations of the body. The natural period or frequency of such vibrations is called the frequency of vibration in a body.
This frequency depends on the factor:
- shape of the body.
- and size of the body.
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संबंधित प्रश्न
State the ways by which the frequency of transverse vibrations of a stretch string can be increased
Give one reason for Ultrasonic waves use for echo depth sounding purpose.
What do you understand by free vibrations of a body?
- 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).
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 wire stretched between two fixed supports, is plucked exactly in the middle and then released. It executes (neglect the resistance of the medium) ______.
Explain why strings of different thicknesses are provided on a stringed instrument.
(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.
