A quartz crystal of thickness 0.001m is vibrating at resonance. Calculate the fundamental frequency. Density of quartz = 2.650 103 kg/m3 and Young s modulus for quartz = 7.9 1010 N/m2.

A quartz crystal of thickness 0.001m is vibrating at resonance. Calcul

1.	A quartz crystal of thickness 0.001m is vibrating at resonance. Calculate the fundamental frequency. Density of quartz = 2.650 10³ kg/m³ and Young s modulus for quartz = 7.9 10¹⁰ N/m².
A.	2.7299 10<sup>6</sup>MHz
B.	26.50 10<sup>3</sup>Hz
C.	2.093 10<sup>6</sup>Hz
D.	2.7299 10<sup>10</sup>MHz
Answer» B. 26.50 10<sup>3</sup>Hz