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प्रश्न
State law of length.
उत्तर
Law of length: The fundamental frequency of vibrations of a string is inversely proportional to the length of the vibrating string if tension and mass per unit length are constant.
∴ n ∝ `1/l` ......….(if T and m are constant.)
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संबंधित प्रश्न
What are the forced vibrations and resonance?
Distinguish between forced vibrations and resonance.
Differentiate between free and forced vibrations.
A sonometer wire vibrates with three nodes and two antinodes, the corresponding mode of vibration is ...................
a) First overtone
b) Second overtone
c) Third overtane
d) Fourth overtone
Show that only odd harmonics are present in an air column vibrating in a pipe closed at one end.
A stretched wire emits a fundamental note of frequency 256 Hz. Keeping the stretching force constant and reducing the length of wire by 10 cm, the frequency becomes 320 Hz. Calculate the original length of wire.
What are forced vibrations?
Show that even as well as odd harmonics are present as an overtone in modes of vibration of the string.
A stretched wire 60 cm long is vibrating with its fundamental frequency of 256 Hz. If the length of the wire is decreased to 15 cm and the tension remains the same. Then the fundamental freuqency of the vibration of the wire will be ______.
