The quartz crystal used in an electric watch vibrates with a frequency of 32.768 Hz. What is the period of the crystal’s motion?

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Supratim PalLv10

2 Dec 2020

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The quartz crystel used in an electric watch vibrates with a frequency 32.768Hz. What is the

period of the crystal's motion?

bronzezebra978

A quartz watch contains a crystal oscillator in the form of a block of quartz that vibrates by contracting and expanding. An electric circuit feeds in energy to maintain the oscillation and also counts the voltage pulses to keep time. Two opposite faces of the block, 7.05 mm apart, are antinodes, moving alternately toward each other and away from each other. The plane halfway between these two faces is a node of the vibration. The speed of sound in quartz is equal to 3.70 x 10³ m/s. Find the frequency of the vibration.

whitehamster152

1 a) The length of a string is 1092 cm. It is held fixed at eachend. The string vibrates in six sections; i.e., the string has sixantinodes, and the string vibrates at 140 Hz. Find the wavelength.Answer in units of m.

b) What is the fundamental frequency? Answer in units of Hz.

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The quartz crystal used in an electric watch vibrates with a frequency of 32.768 Hz. What is the period of the crystal’s motion?

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