E6D01

What is piezoelectricity?

1. AThe ability of materials to generate electromagnetic waves of a certain frequency when voltage is applied
2. BA characteristic of materials that have an index of refraction which depends on the polarization of the electromagnetic wave passing through it
3. CA characteristic of materials that generate a voltage when stressed and that flex when a voltage is applied
4. DThe ability of materials to generate voltage when an electromagnetic wave of a certain frequency is applied

Pick an answer to check it.