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प्रश्न
Explain why does a wine glass starts rattling, when a note of some particular frequency is struck by a piano?
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उत्तर
When the glass rattles, at that moment, its natural frequency corresponds with the frequency of piano note thus, resonance takes place, which makes the glass vibrate violently.
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.
State one condition for a body to execute free/natural vibrations.
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- How does the frequency depend on the factor stated in part (a).
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.]
Define the term Amplitude.
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.
Where can a body execute natural vibrations?
