Question

An opera singer breaks a crystal glass with her voice. Which best explains why this occurs? The pitch of her voice matches the pitch of the glass. The amplitude of her voice heats the glass until it breaks. The intensity of her voice produces a standing wave in the glass. The frequency of her voice matches the natural frequency of the glass.

Answer 1

The frequency at which the body vibrates breaks is natural frequency. The glass with her voice because the frequency of her voice matches the natural frequency of the glass.

What is the natural frequency?

When there is no external force acting on the body unless the body vibrates is known as the natural frequency of vibration.it is denoted by $\rm w_n$.

when the frequency of a body matches the natural frequency a condition occurs known as resonance.

To learn more about the natural frequency refer to the link;

brainly.com/question/1123932