Standing-Wave Vibrations Are Set Up in a Crystal Wine Glass

Multiple Choice

Standing-wave vibrations are set up in a crystal wine glass with four nodes and four antinodes equally spaced around the 2.80-cm radius of the rim.If the resonant frequency of the glass is 8.50 kHz,what is the speed of the transverse waves moving around the glass?

A) 1 500 m/s
B) 748 m/s
C) 374 m/s
D) 238 m/s