| 160. |
A wave generator
slowly has the frequency increased and a beaker on the other side of the
room starts vibrating and then shatters. Which of the following
explains this phenomenon?
|
|
A. |
The amplitude of the
wave increases before it reaches the beaker. |
|
Every
object has a natural frequency. When exposed to waves of the same
frequency the objects starts to vibrate.
If it exposure is long enough and of
sufficient intensity, the object will shake itself apart.
The Correct Answer is C. |
|
B. |
The wave generator
and the beaker are separated by exactly 1000. wavelengths. |
|
|
C. |
The frequency of the
wave and the natural frequency of the beaker are the same. |
|
|
D. |
The shape of the lab
room concentrated all the sound at the location of the beaker. |
|
