You slowly rub your wet finger around the thin rim of a wine glass while you hold its base firmly to a tabletop with your other hand.The resulting sounds illustrates
A)forced vibrations.
B)resonance.
C)both of these
D)none of the above

Question

Quizplus · Accepted Answer

Rubbing a wet finger around the rim of a wine glass causes the glass to vibrate at its natural frequency, illustrating resonance. The action of the finger also forces the glass to vibrate, illustrating forced vibrations. Therefore, both resonance and forced vibrations are illustrated in this scenario.

You Slowly Rub Your Wet Finger Around the Thin Rim