Question

When a glass filled with water is struck with a stick, ripples are produced in the water. This indicates that

• A. the glass is not vibrating.
• B. the glass may or may not be vibrating.
• C. the glass is vibrating.
• D. none of the above is true.

Answer 1

The correct option is C the glass is vibrating.

When a glass filled with water is struck with a stick, it vibrates and this vibration creates ripples in the water. These ripples prove that the glass vibrates. Also, a sound is produced due to the vibration of the glass.